Well, I think a lot of people consider maths as a subject that
is to do only with numbers. In fact, I think maths means a lot more
than this.
If you think about it, the whole world is written in a mathematical
language, in a sense. For example, physics, which is one of the
subjects that helps explain natural phenomena, is all about
equations. E=mc2, F=ma, these are all famous equations
that help to explain the world and the universe we live in. Guess
what is an equation? Merely a form of maths!
Moreover, if it wasn't maths, how on earth do we build bridges,
create computers, and put people on the moon? Now you tell me how
maths is not useful!
You're right, but I'd say Maths is also useful because it makes us think and it's useful as well because some people, probably including most people who use this site, find it fun. If people enjoy something, do they really need a reason?
Maths is also a universal language for communicating across
international barriers - if there wasn't a mathematical language
then it would be really hard to talk about some of the discoveries
made to build bridges, create computers, and put people on the moon
etc. Now you tell me how maths is not useful!
If you're interested, get hold of and read "The Number Sense" by Stanislas Dehaene. He's a biologist who has done work on numeracy in humans: he presents evidence that babies can count and reason in a mathematical sense long before they can talk. In fact, one of the first things that we can tell about objects in the world is the *number* of them; this is before we have an idea of shape, colour etc. It's quite fascinating, and shows that number sense, if not mathematics, is an intristic part of our species.
I think Maths is an interesting subject but not all the time do we need to know all the things that we are learning.....does anyone agree?
Maths is important, but not that many people in life are going
to use half the things that people learn in school. Numbers as such
are almost as important as words:
e.g date of birth, time, change, measurements.
But there are several things we don't have to know.
Maths (in a similar way to philosophy) is one of the few academic pursuits in which it is possible either to work on problems or to expand the frontiers of knowledge whilst sitting in an armchair or in the bath. As a frustrated philosophy graduate, who also enjoyed maths at school, but is now "condemned" to a legal career to earn money to pay the bills, I find fiddling with maths problems is an excellent way to keep the mental cogs greased. But you can't have the "consolation of mathematics" any more than the "consolation of philosophy" without doing the groundwork early on. And believe me, it's a whole lot easier to do the learning before age 21!
Perhaps the use of maths is like the use of any other language.
It depends on the users. The communicator and the communicant. It's
bound to be useful in different ways for different people.
Ther are maths jokes, maths fiction (lots of it) and maths poetry
etc.
Joke:- Tortoise and the Hare
Poem:- eip
Anyone know some others?
However for a classroom of year 9s how can they be convinced it's
worth their time?
Having been a year 9 at some previous point in my life, I have
to say that I imagine most year 9's would question why school in
general is worth their time.
A slightly less flippant (though no less true) remark would be to
ask why learning anything is important? Most of us will never use
most of the English we were taught at GCSE, never mind A-Level. I
read novels, though a lot of people don't even do this, but I don't
have to know how to write a critical essay on them to enjoy them
(though it probably adds to my enjoyment that I do know something
about critic). Similarly geography, history, science etc.
However, I for one believe that it's important we do have as wide a
possible knowledge of, well, the world around us I guess. This
especially applies to history, geography, science etc. Though
mathematics underpins so much of science etc., it would seem silly
to teach one without the other.
On the other hand, Julian is quite correct in saying that you need
the basics to get going. Quantum Mechanics, say, might be deeply
mathematical, but you'll need probably 4 years of maths to get
close to the cutting edge; whereas to explain in words (say in a
New Scientist magazine), people with A-Levels should find no
problem understanding it. So there is a large gap between what is
feasable to teach in schools, and the cutting edge applications of
maths.
That is not to say we should give up trying at all times to
motivate maths. You can do a great deal of practical maths in pure
and applied with GCSE or A-Level standard. Simple mechanics, prime
numbers, graph theory etc. etc. are all very interesting, but easy
to state, and start to understand.
Hmm, I seem to have wondered off topic. Oh well, a final remark.
Last week's Guardian education supplement carried the results of a
survey, carried out at train stations, on what departments at
universities should be closed, if funding suddenly became short. To
my surprise, Maths came 2nd only to English as the *last*
department to be closed! People obviously think mathematics is very
important. Pity it's not funded better...
It's worth adding that the study of maths represents, in some
sense, the history of civilisation. Geometry and trigonometry were
born out of necessity; number theory through pure intellectual
curiosity at a time and place (Greece) when some learned souls had
the space to freely develop these (now valuable) tools.
When faced with the question "but what's the use ...." I often
include this culture aspect in my response. I tell the pupils that
they are ENTITLED to sample the greatest certain body of knowledge
ever assmebled by humankind - it is their right and they should
welcome the experience.
Falls on some deaf ears but it does make an impact with others,
especially if you routinely include cultural/historical allusions
in your lessons
One of the problems with explaining the "use" of maths, especially the kind that gets researched at universities, is that it tends to be difficult to explain in any depth what the research is about to anyone who has not had a lengthy mathematical education. In many other fields, one can at least put the topic of ones research (say, using lasers to clear clots from arteries safely) into words which anyone can understand.
I think the biggest problem here is with the question itself. In
my mind, math is no more a separate topic than art, or English, or
science are separate topics. I teach dance, art, English and math!
To me, everything is patterns. Once a person learns how to discern
and create patterns, vast regions of understanding appear in what
was once an entirely uncharted landscape. Are tesselations art? Ask
Escher. Are they geometry? Ask the geometry teacher. Are
polyrhythms art? Ask the dancer or the musician. Are they math? Ask
the creative mathematician. What is composition in visual art? What
is proportion? Is math language? Ask the computer programmer, the
animator. And what is chaos?
It has been said that the next generation will change careers 3 to
5 times in their lifetimes. It becomes apparent that the most
important skill an individual can acquire is the ability to learn.
Our students need to know this. They need to practice learning in
all areas of academic pursuit. They need to understand that in
math, as in all endeavors, the pursuit of an answer is more
important that the answer itself. They need to understand that
problem solving is one of the most crucial of life skills, both
within & without one's career.
When it comes to the practical aspects of learning math - the
multiplication tables, formulas, etc., which students may find
tedious, remind them that, long before they learned to read, they
had to learn the alphabet. Learning the alphabet doesn't seem to
have anything to do with reading. The letter "a" has no meaning, in
& of itself, and is certainly a far cry from a novel or a
philosophical work. Conversely, the novel remains incomprehensible
to those who do not know the alphabet. The child doesn't demand to
know how learning the alphabet is going to help him or her later in
life, and we feel no need to justify the teaching of it.
The use and purpose of math is beyond important. Its many concepts may be difficult for many to grasp, but the mere attempt to grasp these concepts is what sparks the thought process and opens doors for creativity. This thought process leads to frustration for some, but by the time frustration is reached, the mind has already been opened, and to at least some extent, enlighted; which is the purpose of education.
I am a 15 year old girl in my last year of school. I know you may not think that I'm mature enough to be saying this but I personally don't find maths important, of course I know that it is but I really do struggle with the subject and find it impossible to learn. And considering that I want to study preforming arts when I go to college do I really need to understand maths? And I honestly don't see the point in doing revision for exams when the whole point in doing exams is to test what you know, not what you can remember for a day or two, even though I revise anyway as I know I need the knowledge to gain the grades I just don't see the point.
we (two 15 year old girls)think that maths is important but schools do not make learning maths fun. It seems all algebra,but we think that it would be of more use to us if we learnt more general knowledge instead of things we are probably going to have forgotten by the time we are 20! Maths is important for people going into businesses but do we REALLY need to know how to find the hypotenuse of a triangle? Maths is seen as the most boring subject, but it could be made to be one of the most interesting if we didn't have to do pages and pages of algebra!
Anon, I completely agree. I'm doing maths at university now, but when I was doing my GCSEs I was in the "slow stream" (i.e. the class for people who aren't good at maths) because I had no interest in the subject (at the time I wanted to go to art school after school). I'm pretty sure that the reason I wasn't interested was that it was taught in such a boring way (I remember one class where the teacher told us to work out the area under the curve y=x2 by dividing it into 10 trapeziums or something like that). Unfortunately for everyone, algebra is really important if you want to be able to do anything with maths. Some of the most important and most boring courses I've done at university have been advanced algebra. It's somewhat similar to having to read the Canterbury Tales and Beowulf if you do English at university (written in middle and old english I think). Some people like it, but for most people it's just something you have to do.
I love my maths lessons at school. My teacher always seems to be able to show us how we can use most topics outside of school even down to the obvious one - being able to check your salary. I appreciate for some maths might seem boring but perhaps part of the problem could be down to the teacher and how they teach - i.e with or without enthusiasm. Also people are different in lots of ways. We each have our own likes and dislikes and so some will either love it or hate it. I hope to study maths at university and had it not been for the interesting lessons and the obvious enjoyment my teachers have over their maths things might have been different.
I work as a general practitioner (doctor)and use maths daily. I think maths is more important nowadays for everybody. Essential skills we need apart from basic ones are an understanding of risks and probabilities and fianancial matters. If you are not sharp at maths, people particularly banks and financial advisors will rip you off repeatedly. I don't think this was such a problem in the past. Nowadays people have to calculate risks and have a knowledge of probability as they will need to make their own decisions about medical treatment. For example a 15 year old girl may wish to work out for herself the risks of contraceptive choices based on several sets of statistics. Venturing into the modern world as an adult without good maths armoury is like walking out blind. Studying maths probably also makes your brain grow. The more years one studies the less likely one is to get dementia, statistics say.
As a trainee teacher I have realised that Mathematics is an essential part of the education of young children. Without it, they are cut off from a large part of the society in which they live. From the basics of money to measurements, children need to be confident users in all areas of maths if they are to have equal access to the opportunities available to them as they grow up.
The study of Maths nurtures a valuable life skill - the ability to solve problems using only the available resources.
In a world that is constantly changing, it is reassuring to know
that there are still some things that don't....some
absolutes.
What is more permanent and stable than:
2 + 3 = 5?
It might be written:
II + III = V
or
10 + 11 = 101
or
2 + 10 = 12,
but the fundamental concept of number is an unchanging absolute.
Pretty neat, huh?
I think that maths is a great subject because instead of testing what you can remember it tests how you use your mind to get to an answer. It also trains the mind and builds a useful skill which is needed in all parts of society.
I think math is great because it is at once accessible yet totally sublime. Need more be said?
Brad, I think more does need to be said,
if you are intending to convince anyone else. In what way is maths
"sublime"? What does "accessible" mean when applied to something as
nebulous as the whole of mathematics?
Henry, what skills are you gaining from mathematics exactly? Are
they useful skills? Why should testing how you can use your mind be
"better" than testing what you know?
bhart, I agree that 2+3 = 5 is as near as we can get to an
absolute, but what does it actually mean? Does it correspond to
anything in the real world? If not, what use is it?
I suppose you're right that my comments are not really
convincing for someone already possessing an aversion towards math;
I just didn't think that too many people falling in that category
would be perusing through a website devoted entirely to math. In
case they are though, I suppose I'll explain my quote:
Generally, when something is very elegant, it is available to only
a few. But math is available to anyone. Not many other things are
like this.
I don't think explaining the reasons why something is useful will
convert anyone to its side. Most people realize that math is
useful. But they also realize that computers can perform math far
more accurately and far far more eficiently than them. This, I
think, is the large failure of how math is taught. The way to
actually dispel some of the antipathy towards math would be to show
people some of its more interesting problems (which is apparently
harder than teaching a group of kids disliking everything about the
subject at hand...)
Sorry that was so garbled,
Brad
If everyone here agreed with you, there
would be no point in having this section of the message board. In
any case, I believe that arguing, even with people you agree with,
often helps to clarify and develop your own ideas and can be very
beneficial.
I'm interested that you say maths is available to anyone - in the
broadest sense of mathematics you are of course right, but surely
one of the satisfying things about mathematics is doing something
which hasn't been done millions of times before by other people,
i.e. doing original research. This is certainly not available to
anyone.
What are you particularly thinking of which is elegant, but not
accessible? Music and art are often compared with maths (somewhat
falsely, IMO) but both of these are at least as accessible as
mathematics, and probably more so.
I think a lot of the apparent apathy towards mathematics among
school children is caused by apathy towards the education system in
general. I have my own views on why this is, which wouldn't be
appropriate here, but the bottom line is that it's difficult to
motivate children in any subject. Again, poor teaching in
mathematics seems to me to be a result of problems in the education
system as a whole.
I have to disagree with Tim's "it's
difficult to motivate children in any subject" - I think it's
enormously difficult to stop children being inquisitive and
motivated to learn. Rote learning, learning facts disconnected from
meaning, on the other hand, is not a natural desire of children.
Emphasis on this, to some extent in all subjects, but particularly
in mathematics, is the problem. OK, maybe not "the problem", but a
big one.
I agree with Brad. Having to learn formulae and algorithms is mind
numbingly boring, and it probably makes the teachers feel as
helpless and depressed as the kids. Children should be shown the
more interesting parts of maths, to the extent that this is
possible.
For example, the finite Ramsey theorem proof R(3)=6 would be a good
example. It can be stated and proved in entirely intuitive terms,
parties and so forth, with pictures and colours in a way that even
relatively young children could get a handle on. To anyone who
hasn't seen this proof, there should be a conversation about it in
the Asked NRICH archive.
What I meant to say and didn't was "In the
current system teachers don't manage to motivate children in any
subject" - I didn't intend to imply that children are not naturally
motivated to learn, merely that the education system knocks that
all out of them. I don't, however, agree that it is difficult to
stop children being inquisitive and motivated to learn - all the
children I was at school with had been totally put off learning by
the age of 10, if not before.
Perhaps part of the problem is the emphasis on getting the "right
answer" and getting high marks in exams, brought in by the national
curriculum, SATs and now the national numeracy strategy (don't
start me on that).
An interesting point I heard recently is that until relatively
recently (1600ish IIRC) school work wasn't marked numerically - not
just that they didn't do it, but the concept of assigning a number
to the quality of a piece of work did not exist. Since then we have
moved to the other extreme, where almost nothing else but a
numerical mark is considered valuable. Of course, it's difficult
for a numerical mark to correctly express concepts such as how
creative or neat a piece of mathematics is, so that ceases to be
valuable.
[Current practice is now moving away from giving scores in
favour of constructive comments. - The Editor]
I don't think that introducing concepts of formal proof to children
is going to be easy. Of course, the Ramsey proof you mention is
easily expressed in a manner which has meaning to children, but
it's difficult to know whether they are actually understanding the
deeper concepts or not. Is it even a desirable thing for school
children to understand proper mathematical proof? Is it going to be
helpful to them in later life?
I think the knowledge of a proof is going to be far more useful
than simply memorizing a formula or an algorithm. Mind you, this
needn't be a rigorous proof from set theory, just something that
flows logically and is convincing. Perhaps if people actually saw
logical thought in school they would then actually try to think
independently. At current, I'm not even sure most people know they
can think independently.
Furthermore, showing people that there is indeed such a thing as
logic would end all this postmodern-relativism rubbish present
throughout schools today. Let people draw there own conclusions
about reality instead of telling them that nothing is ever wrong.
Perhaps then, some actual social progress could occur. (this
paragraph is intended to spark controversy; its been a while since
I've had a good debate)
Concerning the desire to learn, however, I totally agree with Tim.
I would say that while everyone has an inate desire to learn at
birth, usually before someone even enters school their outlook on
questions is already predetermined. Children are continously taught
to not question authority. This makes the parents duty monumentally
easier, and thus it almost always is taught. But what is this
really teaching children except to not act independently, or
perhaps even not to think independently (and logically) at
all?
I think Tim is also right in placing the blame largely on getting
correct answers. This entirely eliminates any creativity or
independent thought (and real logic as well) from schools.
It just makes the poor souls memorize and repeat. Perhaps this
creates some poor sort of Machiavellian stability in schools and
thus in life, but it eliminates all sort of progress
anywhere.
"I'm awfully glad I'm a Beta, because I don't work so hard. And
then we are much better than the Gammas and Deltas. Gammas are
stupid...I'm so glad I'm a Beta"
Not too far off...
Brad
How exactly is knowledge of a proof going
to be useful to the average person? When do you use mathematics in
your daily life?
Could you explain in a bit more detail what you mean by
"postmodern-relativism"? I think I know what you mean but I don't
want to waste everyone's time by getting the wrong end of the
stick.
Actually, I think the amount which children are taught to respect
authority has decreased a lot in recent years. Whether the lack of
respect for maths is a recent phenomenon or not I couldn't really
say. What I do believe strongly is that the general attitude of
society is shifting away from independent thought, and I agree with
your comments about "Brave New World". I strongly recommend you or
anyone else interested in this sort of thing read Neil Postman's
"Amusing Ourselves to death", in which he puts just that argument
in a much better way than I ever could.
"I don't, however, agree that it is
difficult to stop children being inquisitive and motivated to learn
- all the children I was at school with had been totally put off
learning by the age of 10, if not before." - Just because it
happens to everyone doesn't mean it wasn't difficult to do so. A
great deal of effort has gone into making the education system like
it is now, years of development. I would agree that emphasis on
quantitative achievement is part of the problem.
Proofs are not useful in themselves, but understanding proofs does
develop the ability to think logically. Perhaps more important than
understanding proofs is understanding the logic behind the
mathematics; understanding the process that leads to an answer and
why it does rather than just knowing a process which leads to an
answer. As part of an overall education strategy I would also
include things like philosophy which develop the art of reasoning
with things which are not rigorously defined. The two complement
each other rather well I find.
As to "all this postmodernism-relativism rubbish", I'm quite
sympathetic to it myself. But I'd also like to know exactly what
you mean by it before I comment. :-)
I'm sure children are taught to respect authority more than ever it's just the nature of the authority is changing slightly and is slightly subtler. I doubt that the degree of 'respect' for maths is much changed either (though I could be wrong). Its very difficult to make a independent comparison when your whole expererience is contempory.
By postmodern-relativism, I'm of course talking about the
doctrine that no one is really right or wrong, everything is just a
"worldview". And even if these views are unsupported, illogical or
even contradictory, they still are not wrong, and all too often, at
least in school, you can't even tell people why the ideas are
contradictory. I'm all for people being able to form their own
views about the world, however, I cannot accept that all these
views are correct, and I certainly cannot accept that any debate of
these views is entirely repressed in schools. Once again, I'd like
to itterate that I do think people should be able to develop their
own conclusions, to write about them, and I think there is often no
real proof for an ideology, but certainly, warrant and explanation
for these views should be encouraged. I'll try to post some
examples what I'm talking of when I get home, which should give you
both a pretty precise basis for understanding what I'm talking of,
and also of my bias (which I'll admit is readily apparent).
Brad
As a Y11 pupil at a secondary school I feel I should enter a
student perspective on the limitations set by exam syllabuses and
student respect for authority.
Unfortunately I feel I should argue that I believe most students at
my school have either no or very little respect for their teachers
and their teacher's authority. I would not say it is that the
nature of authority is subtler but that the authority of teachers
is at serious risk of collapsing as their power to combat appalling
behaviour is gradually removed.
In regards to previous comments about the limitations put on
mathematical creativity by strict syllabus details I would sadly
agree and say it is true that in all subjects we are taught what we
need to know to pass exams - not what we need to know to develop a
clear, rounded understanding of the subject.
This is not the teachers fault. There are some things on the
syllabus that would be very hard to make inspiring. However, most
maths teachers I have encountered are trying their best to make it
relevant and are trying to make it interesting. I have been
priviledged enough to encounter teachers who have encouraged me to
be creative and suggested new subject areas to pursue. I have been
lucky enough to meet teachers who have willingly given up their own
free time to explain principals of proof and number theory not
encountered under the syllabus. I feel very lucky to have been
given the chance to explore fascinating subjects I may never have
otherwise met.
Sadly though, many of my fellow students would have strong
objections to giving up some of their time to find out how
inspiring and exciting maths can be and they thus remain stuck in
the cycle of 'this is pointless and boring', while the under
appreciated teachers struggle to make finding areas beneath graphs
with trapeziums exciting enough to keep a class of 15/16 year olds
(with their notoriously short attention spans) interested.
I think this is wrong but there is very little that can be done
about it - the freedom of the teacher is a thing of the past!
Jenny, thanks for that post, it's good to get a contemporary school perspective, my view is somewhat outdated, although judging by what you say, not that outdated. Curiously enough, when I was writing my previous post I almost mentioned finding areas beneath graphs with trapeziums as an example of a mind numbingly depressing and boring thing that school students are forced to do. I have a vivid personal memory of doing this for y=x2 between 0 and 1. The teacher mentioned that the exact answer was 1/3 but refused to go into any more detail about why. I was really annoyed. Although in that particular case the teacher really wasn't very good, in general I agree that it's not the teachers fault, many of them (most?) are trying to do the best they can given the constraints on them.
I didn't express myself very well. What I
meant was, those with the power no longer choose to use schools to
teach children to 'respect' their authority. Perhaps I was a little
naive; perhaps it has become a little less necessary to teach
respect for authority since authority has become stronger. Possibly
'respect' in some schools is not 'what it was' fifty years ago. I'm
also sure that there is a lot of propaganda designed to hide the
real problems.
Dan, I don't think it makes sense to say
that the effort put into the education system is evidence that it
is difficult to prevent children from wanting to learn. The effect
on children is just a side effect of the changes made for other
reasons - if a deliberate attempt were made to prevent children
from wanting to learn I don't think it would be very difficult at
all.
I think you're right that logic has to be combined with other
things in order to be useful. An over-reliance on pure deductive
logic can do more harm than good IMO, because deductive logic is
relatively useless in areas other than maths. I certainly wouldn't
advocate not teaching maths properly, but I think mathematicians
tend to see it as being more important than it is - the fact is
that it doesn't really make that much difference to most people's
lives.
OK Brad, I think I see where you're going with postmodern
relativism. I challenge you to tell me one thing, just one, which
you know for absolutely certain (and I mean something outside of
deductive logic and mathematics, since my understanding of Godel's
theorem isn't good enough to avoid embarassing myself in an
argument).
Jenny, I think my experience at school up to year 11 (which wasn't
all that long ago) was rather similar to your own. Unfortunately, I
think the problem lies deeper than just the teaching of
mathematics, and I can't offer any solutions.
In response to the post that Dan made
while I was writing the last one, I remember my A-level teacher
telling us what the integral of e^(-x^2) over the real line was
without proof, which annoyed me somewhat. Two years later I got to
see a proof in 1A vector calculus, and I remember thinking "What a
boring, dull and rather pointless proof" as I copied it into my
notes without caring.
Not knowing things can be frustrating, but that doesn't necessarily
mean learning is always fun.
I'm a year 10 student in a public High School (in America, if it
matters), and generally, while I would say that students are
generally disrespectful to teachers (when the teachers aren't
around of course), they would never think of questioning a teacher
or an adult's authority: a law is a law because it's a law. Some of
my teachers have students do ridiculously stupid things, but narry
a student ever asks them why.
I agree that teachers should have more freedom in what they teach
though. With standardized tests so omnipotent, they have to simply
make sure the bottom of the barrel students end up passing, and
thus (at least it has been my experience) neglect entirely students
with real ability and/or drive.
Tim, I don't think I know too much to be a priori. However, I do
know that I exist, that others exist and that we can all think. I
take this for granted. And I also take for granted that a viewpoint
is nothing without some sort of justification using that
aforementioned thought available to all.
Since I promised examples, here is one example that happened about
a month ago: A teacher in my English class was talking about
mythology. I offered that as most themes and even most images are
archetypal when there is no reason for them to be, the motivation
for the characters is at least partly the Jungian collective
unconscious, that these wise old men and sun gods in myths are
probably inate imagary in our species. She said 'perhaps that's
true, but that's not my worldview' or something to that effect.
When I asked her after class whether she wanted to hear some of the
support for Jung, she simply reitterated that we had different
worldviews, and that I'd just have to accept that. She wouldn't
give an indication as to why she felt differently, just that she
did.
I think that is terrible, that a person would go so far as to
denounce an idea, but not give any reasons why, and then say that
the idea "is still right".
One more thing that I'm sure is true: there is only one reality,
and that we as humans experience this reality, therefore can know
this reality. While what I took for granted above may be
academically open to doubt, this latter is not. This does not mean
that we do know everything about reality. I'm still open to
discussion concerning what actually composes reality or what laws
reality obeys simply because there is no known proof for these
things, and perhaps there never will be. But the only way we as a
human race are ever going to get closer to knowing this reality is
to start accepting that some "worldviews" must have at least some
backing. "Everyone has a right to their opinion, but no one has the
right to be wrong in their fact"
By the way, an excellent article that every sentient being should
read is "Student as Nigger" by Jerry Farber. It was written in the
60's, and uses language to challenge traditional authority (hence
the title), but it contains some great thought and excellent
analysis of a situation probably more present in today's high
schools than colleges.
And finally, as for my challenge (though I alrady included several
examples), one thing I know to be definitely true is "I think
therefore I am". How could it be false?
Brad
I'm afraid I don't have time for a full
reply right now, but I'd just like to point out that you've rather
shot yourself in the foot by admitting that you take the matter of
your own existence for granted. You don't have any proof.
"I think therefore I am" is fine as an implication, but it merely
reduces the problem of proving that you exist into one of proving
that you think. Which I don't think you have done.
I'll reply to the rest of your post (which is very interesting)
later, since I've got lots of work to do for tomorrow.
Tim, I quite liked that proof (you did the
ò
e-x2dxò e-y2dy one, right?), I thought it
was pretty neat.
Brad, the problem is that none of the statements which you have no
doubt about are of any use in most of the cases to which relativism
is important. Less significantly, they're only true to the extent
that most people would agree with them (and even then, not all
people).
Actually I think I probably agree with you to a certain extent.
Using relativism as a means to dodge debate is no good at all.
However, using it as a means to analyse social and political
structures can be quite fruitful.
The example you gave of your teacher refusing to debate a point
with you is disappointing, but maybe she hadn't heard of Jung and
didn't want to be shown up in front of one of her students. If that
were the case, I wouldn't be too hard on her, Jung isn't exactly
mainstream (although anyone who had done an English Literature
degree probably would have heard of him).
By the way, the article that Brad mentioned is available online at
http://ry4an.org/readings/short/student/.
To be honest, I can't remember what the
proof was. I didn't say it wasn't neat, just that I didn't find it
interesting. I have no reason to believe the average GCSE student
would find proofs interesting if they were shown them. I think part
of this is to do with the fact that maths is more enjoyable when it
is not too difficult (a level which is dependent on the person
concerned). People have no right to think that because they find
something enjoyable it should be forced on others.
I agree that relativism shouldn't be used to dodge debate (at least
in part - if someone doesn't want to debate they don't have to, but
they can't duck the debate and claim to have won, as some do).
However, I do think that it is impossible to completely prove
anything, and that it is possible to have different self-consistent
world-views.
In terms of your teacher's behaviour, it's obviously annoying but
don't forget that teachers are human. There are times when I don't
feel like debating things (mostly when I've got too much blood in
my caffeine system).
I would just like to comment on what Brad said about pupils not
daring to be disrespectful to teachers' faces in his American
school.
I have friends of my age in America who I regularly talk to and
they all say that the teachers they encounter are generally treated
with far more respect than I would say some British teachers are. I
think what may also add to this is that teaching is treated as a
more valued career in America than it is in England.
Here, if a pupil doesn't like what they are told to do they will
debate it, they will refuse, they will hurl abuse until ultimately
they are thrown out of the lesson. Next lesson they will be back
and we will go through the whole charade again. This isn't just
when they don't want to do something that seems stupid - this is
when they don't want to participate in the lesson becauese they
don't see the point.
- OK negative impression I'm giving there, but I've just returned
from school after a day of the above and have seen it all in a
rather negative light.
On a more positive note my maths class was very good and despite it
not being on the syllabus our teacher gave us the derivation of the
quadratic formula - what is even more interesting is that following
his explanation people began to think and ask further questions
about the algebra encountered. It was very good to see and gave me
at least a little hope that all is not lost! It seemed today that
students are most inspired when they are pushed a little and given
room to think!
While I can appreciate different "self-consistant"
philosphical systems in the sense that they should be even
encouraged, I think that most of the differences in these
philosphies is generally tautology, and that, if they are
contradictory they shouldn't be "left alone". Furthermore, I do
still think that there is only one true reality (ei. Axiom of
Choice may yields truths as either true or false, but it is
certainly true or false, not both). Similarly, I hold faith that
this reality can eventually be proven. I also hold axiomatic that
even self-consistant realities have evidence or a lack theorof, and
thus, if there is no evidence for a "worldview", it shouldn't be
thought true either. And lastly, I certainly hold it true that only
one system of ethics exists. In this respect, I do not think
relativism is beneficial in social structures. I think that one
reality must be deduced (the one with the most evidence), and that
reality should be used as a standard for ethics.
It's fine with me if people want to ignore facts, and diregard
inconsistencies, so long as it makes them happy and harms no one
else. But the moment they destroy someone else's felicity because
of unfounded beliefs, I'm afraid there beliefs should not be
tolerated at all.
I do once again though, think there is only one reality, and I'm
sure that nature is not so incorrigible as to make this reality
ultimately indeterminable.
Brad, you may like to believe that there
is a consistent well defined notion of truth, but it is just that,
a belief.
With regards to the axiom of choice, it has been proven that ZF+C
(Zermelo-Fraenkel axioms for set theory with the axiom of choice)
and ZF+~C (ZF with the axiom of choice negated) are both consistent
(assuming ZF consistent). One of the consequences of this is that
we cannot construct a set (within ZF) with cardinality strictly
between Aleph 0 and c (the cardinality of the reals).
Now, set theory, specifically ZF, is an entirely man made
construction and has no direct relation with reality. It serves as
a useful model at a macroscopic level (and this itself is an ill
defined concept and depends a great deal on the nature of
perception for example, which is sufficiently subjective to make it
a useless tool for a discussion of objective truth) but there is no
reason to suppose that it corresponds with any aspect of reality at
all, in any way. So, even if you hold the belief that "there is
only one true reality", you cannot deduce from this the truth or
otherwise of the axiom of choice; neither in theory nor in
practice.
Considerations like these (there are similar such considerations
for ethics or any other area of thought) are what suggest the idea
that there is no consistent and universal way to define
truth.
What we can do, in terms of ethics, is to try and persuade people
that they should behave in certain ways if they believe in certain
principles. In terms of morality, we can try and persuade people
that they should hold certain principles. The former task is better
defined in some sense because it is a bit like deductive reasoning.
The latter task is ill defined in this sense in that it involves
appealing to example, indirect persuasion, experience of life, some
innate psychological properties of people, etc. In other words, the
philosophical study of ethics and morality is really just an
exercise in persuasion.
To pretend ethics and morality are the study of truth as applied to
human relations is just sophistry - a subtle method of persuasion
based on a widespread, unfounded, misunderstood cultural notion of
truth. It also probably serves a psychological purpose for those
who study ethics and morality. Because they too have this ill
defined notion of truth it would be painful for them to admit to
themselves that their lives' work is an exercise in persuasion
rather than discovering universal truths.
Well, that's my opinion. I hope I've managed to persuade you -
after all, that's the purpose of discussion. Feel free to persuade
me otherwise. :-).
I wasn't really proving anything with AC, just using it as an
example.
I would agree with you that the best method to convince others of
ethics is by persuasion based upon previous life experience they've
had, but that is not the way I try, at least, to convince myself of
an ethical proposition, nor does your method in fact validate an
idea, it simply confuses people into support. Ethics should be
based solely upon something everyone can agree upon, not emotions
felt by one person, nor by the way it has been engrained in one's
mind by culture.
In ethics, the first assumption to be made is that other people
actually exist, and that they can experience happiness and sorrow.
We next define that happiness is good and sorrow is bad. (this is
an assumption that happiness exists, which is not already
unstated). From this, I think most ethics will follow.
As an end note, if we as a human body don't agree on a few simply
principles, in what sense
"Those are my principles, and if you don't like 'em, I have
others."- Groucho Marx
By the way, without my first assumption, such a thing as ethics does not exist. With it, ethics must exist.
According to your ethics it must be moral to murder familyless friendless depressives. :-)
That's OK, I was just using the Axiom of
Choice as an example too, to illustrate the idea that there are
statements which do not have a truth value.
For the moment, I'll stick with the notion that the study of ethics
is the art of persuasion by another name. Suppose I don't agree
that happiness is good and sorrow bad. Suppose, for example, and it
is not a far fetched example, that in some cases I prefer to be sad
than happy. Would it be ethical to force me to be happy against my
will? Perhaps you could refine the idea to be that satisfaction is
good, so that if I achieve what I desire I am satisfied and this is
good. But this begs the question, what motivates my desire and
should the formation of my desires not be considered as part of
ethics? We could go on all night about this. We could talk about
whether or not happiness is a meaningful, well defined notion, how
it could be defined in a culturally independent way, whether or not
this definition corresponded with something we think is good,
whether or not satisfying desire is good, whether desire can be
defined in a culturally independent way, and so on and on and on.
If you stuck to your guns and wanted me to believe that happiness
is better than sadness, then you'd have to try and persuade me of
that fact. This cannot be done by rational argument alone, although
rational argument almost certainly would form part of your
persuasive toolkit.
Also, I'd take issue with the idea that any ethical theory follows
from a definition of happiness as good and sorrow as bad. For
example, would you quantify happiness? Would you then try and
maximise total happiness, average happiness, minimum happiness or
what? Assuming happiness can be quantified (a highly dubious
proposition at best), is there a sensible way of deciding between
different distributions of happiness (even if you only have an
ordered scale of happiness rather than a numerically quantified
one)? To the last part, the answer is probably not and I've written
a good, mathematical, article explaining why which I'll provide a
link for if you're interested?
By the way, there are moral theories which do not utilise the
notion of happy or sad, good or bad. For example, Robert Nozick's
"Anarchy, State and Utopia" (which I'm in the process of reviewing,
unfavourably) in some sense proposes an ethical system whereby what
is sought is not "happiness" or "good" but freedom to act, within a
sphere of liberty whose boundary is defined by others coordinate
sphere of liberty, without forceful coercion. So it is possible for
ethics to exist without your first assumption.
We seem to have strayed from "What is the use of mathematics?" - oh
well. :-)
Your points are good. To avoid linguistic problems with
happiness, perhaps it would be beneficial to call one fullfillment
of one want to be an "A". Therein, we realize that the more A's we
have, the better off we are. This is both quantifiable and well
defined. (1 want is tricky to define, I'll write about that in a
later post)
Obviously, we cannot only use rational argument to form a
philosophy, but I do think that a philosophy may be developed from
a number of axioms that no one can disagree with. I think Spinoza
has done a reasonably good job of this (though, he sometimes seems
to get mixed up with semantics, a problem not really recognized on
a conscious level until logical positivism).
I'll try to write out a compelling argument for the system of
ethics I outlined above with A's in a later post
William, if the person is as you described, really wants to die,
and stands no chance for recovery from the depression, is it really
wrong to kill him? Thankfully I think this is pretty trivial as
people can indeed recover from depression, but food for
thought...
Brad
To jump in at this point, seing as the
conversation seems to have digressed somewhat, just a few words
about postmodernism and truth and all that. I think Brad you will
find it really quite hard to get around the postmodernist
arguments. All your arguments, for a start, will be written in
words, but what do these words mean? If you look them up in a
dictionary they will be defined in terms of other words and
therefore ultimately self-referential. So how do we know what the
words mean? Where is the meaning? Ultimately the body of language
and even maths must therefore go outside of itself and you need
some kind of feeling for what things mean that will based on your
experience of the world. But your experience is conditioned by the
culture you are in and the particular experiences you have had. Not
to mention the fact that most sensory data is hardly objective. So
in some sense your words will never mean quite the same thing as
some-one else's. This is the idea of hermaneutics, the idea that
the validity of your arguments is restricted to situations in which
you are speaking to other people who have a similar enough set of
concepts for the conversation to make sense. For instance, an
extreme example due to Wittgenstein "if a lion could speak, we
still wouldn't be able to understand it", because the experience of
being lion is to different from the experience of being human. So
it really is quite difficult to find somewhere to start building
from, axioms if you like, because we won't necessarily agree as to
what they actually mean.
Sean
Can't words be defined perfectly well by pictures? Obviously
somethings are not defined culturally, as mathematics is
nonetheless very specific, and developed by a number of cultures at
the same time.
As far as the lion comment, philosophy is I suppose not entirely
objective. In fact, I would go so far as to say it is entirely
subjecttive. I merely desribe and reason about what I have seen. I
have no way of knowing if that's what another person has seen, or
even if that person has seen at all. I'm inclined to say it's a
reasonable assumption to assume that other people do in fact exist
(quite an epiphany, eh.) and that they observe in largely the same
way as I do, and thus I think any real philosophy can get around
postmodernist traps by choosing sufficiently small axioms and going
from there.
Whatever happened to Occam? The simplest explanation is most likely
the true one. On top of this, I know that a) I live in one reality,
b) that other people around me seem to act as though they live in
this reality too, e.i. they say red when I see red, they agree upon
my notions of logic, and so on. These three combined surely suggest
that other human's experience the same reality as I do, or else
they do not exist at all.
To move to the lion example, what basis do you have for suggesting
that there experiences would be entirely different from mine. Sure,
they walk on all fours and have a tail, but I don't see any reason
to suggest that they fundamentally view reality differently from
me. It of course is obvious that if they do indeed have a different
transcendental view of the world, they do see a different reality
emerge, but I don't see a reason to think that they have an
entirely different conception of the world.
I was going to type more, but it's getting very late, and I'm
likewise getting very tired. I'll try to type some more
tomorrow.
Brad
I've just realized that simplicity is a culturally defined thing, so perhaps I should change my statement to whatever happened to Occam's amended razor, if there is no basis for an idea, it generally is not true.
Pictures are not objective either, for a
start they various symbols carry different connotations to people,
or else they are a direct reference to a sensory reality that is
not objective. Also, have you seen the picture of the duck-rabbit?
(it's a picture that can be seen both as a duck or a rabbit
depending how you look at it). What Wittgenstein does for instance,
is talk a lot about how we actually learn things, a lot of it is
through pictures and so on, and the whole point is that none of
this learning is objective. A picture will always carry implicit
value judgments.
It is of course a reasonable assumtion that other people exist and
are similar to ourselves. The point is that you can't put that
assumption on a rigurous basis. In fact, you can't even formulate
in a way that you can be sure that everyone will agree on what it
actually means.
So various cultures did develope maths and indeed aspects of
language in parallel. And this is a good indication of some kind of
external reality. But only some of the postmodernists actually
entirely reject external reality. It's more about saying that you
can't have big interpretational schemes (so for instance Lyotard
defines postmodernism as the "rejection of metanarratives", where a
metanarrative is some overarching theory, social or scientific,
that claims to hold the truth about the way the world functions.).
And one way of rejecting these big explanatory systems is to point
out that there is dependence on particular use of language. And
these langagues and mathematics are also slightly different, espite
similarities. Anyone who knows two languages well will see that
there are phrases that you just can't translate properly, because
the spirit of them is intimitly tied up with the language and
culture as a whole. And the only way you can understand it is by
living there, but this is then language going outside of
itself.
ps. I don't actually agree with postmodernism. But I think one
should acknowledge that their critique of other philosohies is not
one that you can get round easily, if at all.
Sean
It perhaps is difficult to disprove postmodernism, however, it
is also difficult to disprove the notion that there is no such
thing as logic. The latter is of course contradictory in its basis,
but it is impossible to point that out.
However, I think I may have a pretty good critique of
postmodernism. I start with postmodern assumptions:
I see some subjective reality when I view the universe. Other
people exist in this reality. They are functioning in this
universe. Now, for others to function in this universe, they would
have to see what I see to some large extent. Furthermore, these
people act as though they see what I see. In fact, I have no way of
knowing for sure what they see, but all that I can gather supports
that they see what I see. Now, in what sense do their reality
differ from mine. In no way can I determine that it does not.
Certainly then, if their fundamental conception of the world does
differ from mine, they are entirely superfluous to me, as they are
not someone I am observing, nor can I observe them as they are not
a part of my reality. In what sense do they exist (to
me)then?
I can't believe that we have a dependence upon language either.
Words are not thought or ideas, they merely reflect these ideas. If
words were ideas, then how would it be possible for me to learn a
new language in which those phrases you mention have no meaning in
my previous language. If anything, language has a dependence upon
ideas.
Mind you, the postmodernism you mention is a far cry from what I
originally complained about, the type used in my school. You see,
in my history class, the validity of an idea is judged not by the
thought that went into it, or anything like that, but by the size
of the empire it came out of. Furthermore, in other classes,
postmodern ideas are applied to places they don't even make sense
in. For example, a person might say of evolution, 'it's only an
idea, and who am I to say that it's right or wrong?'.
Brad
Also, Dan, I'd like to see that link.
Thanks,
Brad
Brad, I agree with most of what you said,
especially that is completely ridiculous in many cases to treat
things that are manifestly true as "only ideas", such as evolution.
So it is certainly true then that postmodernism can be used as
weapon to defend all sorts of inconsistent and downright wrong
ideas, and it can also lead to silly conclusions such as the
nonexistence of other people if you take it too far.
However, the flipside (and this is certainly what the founding
fathers in Paris would have had in mind) is a critique of authority
that is quite powerful. It looks at hidden assumptions in the way
we speak. Or not so hidden, for instance various postmodernist
feminists have looked through classic philosophical texts -
supposedly "objective" - and claimed that there is a masculin bias
in the use of language. So if you like a basic claim of
postmodernism is that language is not something neutral, and that
therefore any "explanation" of the world will implicitly be biased,
because it will be phrased in language.
And I'm not sure I agree with you that language and ideas are so
distinct, what is accessible to your thoughts is clearly limited by
the concepts you have to work with, which are linguistical. This
works in maths too, the sort of things you can think about are
often limited by the mathematical vocabulary you have.
Sean
Brad, the link to the article is http://www.bbc.co.uk/h2g2/guide/A568613.
Hopefully the application to our current discussion will be clear,
let me know if not.
Will write some comments on the discussion a bit later, must do
some work at the moment though.
I think I agree that language is not neutral, and that different
statements can be said to bias a person one way or another (the
whole premise behind politics, right?). But this is merely
statements, how a paper is written, and not a perception to
reality. Perhaps postmodernism can dictate that there are different
confusions of reality; I agree with this. But, these are merely
confusions, not realities nor validities. And, we are not concerned
with confusions when talking of reality. If a person is seeing the
same thing I am, then they can talk of reality with me. Reality is
not written in semantics after all. It is entirely spatial.
The critique left open to this is that all people have these
confusions. But this does not mean they must. Rather, by thinking
with actual ideas, and by using spatial logic (something
empirical), we can refer to reality as it is.
A few comments:
Brad, the problem with your "A"s is that "1 want" is not easily
definable. If I want a banana and an apple, it's easy to define "1
want". Suppose, though, that I want a fruit salad. I'd prefer a
fruit salad with kiwis, bananas, apples and oranges, but what if
there are no kiwis available. My want for a kiwi, banana, apple and
orange salad is going to go unfulfilled, but my slightly lesser
want for a banana, apple, orange and melon salad could be
fulfilled. You have to have some sliding scale of wants, I can't
imagine that you could quantify this.
"but I do think that a philosophy may be developed from a number of
axioms that no one can disagree with." - I'll believe it when I see
it, I've not found any well defined axioms that everyone agrees on
yet. I look forward to seeing your "A"s system of ethics.
Quote:Brad: Mind you, the postmodernism you mention is a far cry from what I originally complained about, the type used in my school. You see, in my history class, the validity of an idea is judged not by the thought that went into it, or anything like that, but by the size of the empire it came out of.
Quote:Furthermore, in other classes, postmodern ideas are applied to places they don't even make sense in. For example, a person might say of evolution, 'it's only an idea, and who am I to say that it's right or wrong?'.
While I agree with you that it can be interesting to look at why
people believe what they believe, but all too often this is taken
too far. Many times people, especially those people worth reading
about believe something because of a genuine thought they've had,
not some underlying cultural movement or stagnancy. I think this is
the way that most people think, but people like Russell, or Newton,
we can't analyze their actions like this. I think that you agree
with me here though, so I'll move on.
When I talk of evolution, I of course talk about it in the general
sense, that change occurs in a species. I don't see how someone can
argue with this, once they accept that mutations occur in a species
and that those better adapted will better survive. This is able to
be disproved (though I'll squeeze in that Popper's a moron). Also,
I'm sure that your correct in your left->Gould,
right->Dawkins statistic, but any idea why this would be?
When I talk of spatial reasoning, I'm largely talking about things
like Venn diagrams, and positions. This will adapt to whatever
geometry you choose (though will not be intuitional).
Alright, the want's: I think most of the time, there is no need for
a distinct quantification. THe system of A's I speak of really
isn't very much an advance, but merely a way to get around the
measurability problem. We define a negative number of A's to be
wrong. This isn't very self explanatory, so here is a paper I wrote
on abortion about a year ago. It was written for a speech where I
had to state contentions, and I've edited it to have less gabble in
between the lines as it's rather long to start with.
Principle A- we should always do what
is good for society, good being rather undefined at this
moment.
Principle B- It is good to have a some happiness- happiness being
defined as an emotion brought upon by a fulfillment of wants.
First, we must define evil as "the lack of good" and may be
replaced by it in any sentence.
It follows from Principle B that when peoples whose wants
could’ve been met are not met, and someone else’s wants
are not met either, it is not a good thing-it is evil. Call this
proposition A.
Similarly, it follows from Principle B, that when there isn’t
happiness, which simply means there are no wants, there is not an
action good or evil, so long as the action concerns solely that
with no wants. This is analogous to the use of a rock. Solely as
the rock doesn’t cause unhappiness for another, anything may
be done with it.
Denote contention I as "If there is no happiness or unhappiness,
then actions concerning solely that medium are not good or
evil"
Now, let us define the condition of consciousness by
“recognition of self”. Now, in order to have a want,
one must want something for oneself. Thus, one must recognize
oneself. Thus, to have wants, one must have consciousness.
Therefore, to have happiness or unhappiness, one must have
consciousness.
Denote contention II as “To have happiness or unhappiness,
one must be conscious”
It is a scientific fact that consciousness originates in the
cerebellum, which is part of the brain. Therefore, and denote this
as contention III:
“if something has a consciousness, then it has a
brain”
But, from the statement of our resolution, we are specifically
aborting something without a brain. From III, it therefore has no
consciousness. From II, it therefore experiences no happiness or
unhappiness. And finally, from I, actions concerning solely the
thing we are aborting do not concern good or evil. Therefore, if we
solely consider aborting the fetus before it has a brain, we are
not doing evil nor good. But, the mother must be put in the
picture. She, before having an abortion, wishes to have an
abortion. Therefore from proposition X, by forbidding her to have
an abortion, we are doing evil. So we have arrived at this heavily
disputed antithesis: It is not morally wrong to abort a fetus
before the brain develops.
In some cases, this system doesn't work, though, not because it
would yield a falsehood, simply because it doesn't work. But I
think ethics may be developed from this though.
Now, you mentioned using the ideal of freedom for a basis for
ethics. Isn't this just a byproduct of happiness though?
I haven't yet had a chance to look through your link, but intend to
do so soon.
Brad
Brad. One suggestion that someone made to
explain the left=Gould right=Dawkins thing was that socialists
naturally prefer the idea of revolutionary change and right wingers
prefer the idea of a gradual progress. Personally, I think that
arguments a load of rubbish, but amusing nonetheless. I've no idea
why there is this political divide, it might be entirely chance,
people sticking by what other people on "their side" say.
I enjoyed your argument for why abortion is not wrong, it's roughly
the same argument that I come up with when having a debate on
abortion. How did it go down? I can see several places where your
argument could be attacked, perhaps most importantly "It is a
scientific fact that consciousness originates in the cerebellum,
which is part of the brain." Comparisons with the belief
(Descartes?) that the seat of consciousness is the pituitary gland
would be inevitable.
I don't think freedom and happiness are necessarily causally
related. For example, you could have happiness without freedom
(consider the Betas and Gammas and their Soma habit in Brave New
World). Similarly, you could have freedom without happiness (loads
of literary examples of this I think). Nozick's point is that a
system of ethics based on an "end state principle" (i.e. one in
which you prescribe certain states as desirable and try to achieve
one) runs the risk of being paternalistic and imposed. Brave New
World is the obvious example here.
Finally, I don't think it's worthless to construct ethical systems
based on fixed principles and so on. Far from it. I just think it
is misleading and confusing to talk about them as if you were
discovering a universal truth.
Actually, Dan I don't think that's the
point about Dawkins and Gould. It's more to do with reduction to
genes. Dawkins talks about people as computers "programmed" by
genes and talks about DNA as discs of information whilst Gould has
a less bottom-up approach (i.e. there is interaction between
proteins and DNA right at start of embrionic development, and
throught life there is a continual interaction between genes and
the cell environment which can determine which genes are expressed
etc.). So the point is that socialists tend not to believe in
"human nature", and so they have problems with Dawkins. Personaly I
have found interesting things from both of them.
Brad as for your system there are problems right from the start.
For instance a certain ex. British Prime minister that I'm not too
keen on famously said "there is no society, only individuals", so
as far as she was concerned, your starting with concepts that don't
actually mean anything. Similarly many neurologists would deny that
"consciousness" exists as a concept. And then as you point out
there is a certain fuzziness in the word "good". The idea of
happiness as fulfilments of wants is also surely something some
people would disagree with. Etc.
Sean
ps. I do basically agree with your argument though, but it couldn't be called watertight.
Sean, you're probably right about the
Dawkins/Gould thing. Although the left/right split also applies in
the continuous/punctuated evolution debate (which is, I think, a
separate debate), your explanation of the political divide coming
about from the debate about reductionism seems more likely.
Also Brad, why is Popper a moron?
Oops, I typed that? Anyways, he just replaced induction with "Falsificationism", and the two were really the same thing. I certainly didn't mean that his works were without merit, just that most of his ideas had really already existed, he just renamed them. He was a bright man though, and I didn't really mean that he was a moron.
By the way, I think I agree very much with your latest post, Dan. Certainly, in the lack of any proof for God, or really any watertight proof of anything being a priori, I don't think that anything should be heralded as the be-all-end-all truth. I do, though, believe that there is a be all end all truth in the sense that there is one reality, and that reality is determinable by things perhaps not a priori, but nonetheless sufficiently small axioms (like the axioms used in math).
Brad, I think inductionism and
falsification are quite different, or at least the emphasis is on
very different things. And that this is fairly widely
recognised.
Sean
They do indeed emphasize different things, but they still in
basic form are really one and the same idea. In order to falsify
something, one must induct that it does not occur, or from
induction gain a casual relation to disprove something. This is
still induction, or so I was to think...
Nonetheless, I'd never before given little more that a casual
glance at Popper, but I looked through the internet today, and some
of his ideas, specifically that we learn through falsifying, not
induction (while only an academic distinction) do differ from the
induction school of thought.
No, for something to be falsified it only
needs to not happen once, so you don't need to use induction.
Induction is the process of going from a finite number of examples
to the general case. So what Popper is saying is that although you
can never know something is true generally because it has only
happenned a finite number of times, you can know that it is wrong
on the basis of just one counterexample. And then he defines
science as those statements which can in principle be falsified,
which has no anologue form the induction perspective.
(there are still problems with all this, but that is beside the
point here).
Sean
Popper believed one and only counterexample to be sufficient to
disprove a theory? I suppose if that's what he believed axiomatic
then that's what he believed axiomatic, but I don't think I can
agree with that. I mean to assume that the theory would always test
false, wouldn't you still be inducting in the sense that you are
saying
one counterexample -> infinite counterexamples
Just as with induction of the true you say
many true examples -> infinite true examples
It's not exactly induction in it's ordinary form, but there is a
tacit assumption of induction included.
If your making Popper's premise as axiomatic, then I suppose you
can state it relies in no way upon induction, but certainly the
principle of falsification can be a precipitate of induction, and
thus is not really anything new.
Furthermore, Popper's claims as to what science can deal with
simply confused matters. He offered a new definition of science,
which people now mix up with the (support) = (roughly true)
definition. This is entirely a semantic distinction, and is
not an epiphany.
That's just my two cents though,
Brad
It's simpler than that. Suppose I have the
statement "all swans are white". Now, the inductivist approach is
to say, well this is true because I have many white swans. Popper
says that this is a scientific statment because it could be
falsified the next time I see a swan. But I only need to see one
black swan for it to be falsified. I don't need to induce that
there are infintely many black swans. Of course this gets
complicated because how do you falsify the statment "70% of swans
are white"? But this is why his book hi several hundred pages long
(Not that I've read more than the first 50 or so, it got kind of
boring...).
Sean
Interesting. It's off topic, but in what way do we actually end
up with a useful statement at the end of Popper's theory. We'll end
up with something like 'at least one swan is black', which is not a
statement that is scientific in the general useful sense. Perhaps
science needs falsification to be tested, but in no way is science
developed by falsifying ideas, if it were, we'd have very little
certainty.
I'm sure a refutation exists for this, but still, isn't induction
used in a sense in falsification? Particularly, I think it's used
in that we induct that what we see, hear, detect with a microscope,
etc. is actually consistent with other senses?
Dan, I've been rather busy lately, but I managed to read through
the article you made. It's very interesting, however, the only
application to measuring happiness that I could think of is that
there is no way to measure what one thing makes one person happy.
I'm not sure it limits the idea of a hedonistic calculus
though.
Brad
Brad, the point about Arrow's theorem is that there is no way to aggregate individual preferences. So if I would be happier in state A than I would be in state B, and you would be happier in state B than in state A, which state should we choose? Arrow's theorem says that, in general for an arbitrary set of states, a finite set of individuals, and a set of preferences for each individual, this question does not have a mathematically satisfactory answer. In some cases there is an obvious solution though. If every individual prefers state A to B, then society as a whole prefers A to B, so we choose A. It gets more difficult when people disagree unfortunately.