Do qualified epistemologist read and post to this group? I joined the
group in the hope of gaining some insight into the theory of knowledge.
However, most rational posts are from individuals with scientific
backgrounds and, as yet, I have seen no evidence of input by a
qualified epistemologist.
The philosophy of science is concerned with the validity of
'knowledge' derived from scientific observation and induction. One
of my concerns is the debate between advocates of Realism and its
critics. Realists claim that scientific theories may be near the truth
or false, that their near truth entails the probable existence of
unobservable entities and has explanatory significance. On the other
hand, some anti-realists (constructive empiricists) claim nearness to
truth has no relevance for science. That science aims at success but
the degree of success is unrelated to the probability of truth.
This debate clearly throws the ball into the empiricist's court. What
say you?
Zinnic
I believe that nearness to the truth is irrelevant in science. Science
has no ability to determine whether or not a theory is true; it can
only tell if the theory and the data are consistent. As far as science
can tell, there could be other theories which explained the data as
well or better. The success of science has been due to dropping the
quest for truth and concentrating on viable working theories. The
oracle has spoken!!
How do you know something is true, though?
Give me an example.
-Souvik
The statement: "Science has no ability to determine whether or not a
theory is true," is equivalent to the statement: "evidence cannot
prove a theory true". I think this is the case for all theories
derived by science.
Let me elaborate a little bit. We are familiar with the basics of the
scientific method: Beginning with observation, we notice phenomena
(repetitive events) and begin to suspect that a hypothesis is true.
This hypothesis takes the form: p -> q, or the event p implies that q
will be the case. Other logical constructions of implication are "not
p or q" and "not q implies not p".
By testing the hypothesis, we either prove it to not be the case
(false) through the argument called modus tollens, or we support it by
showing the hypothesis is not falsified by a test. It is logically
impossible to prove a hypothesis to be true. Thus the statement that
"evidence cannot prove a theory true" seems evident by the fact that
the argument:
p -> q
q,
therefore p.
is an invalid argument.
I never know if anything is true. Do you? I am perfectly happy using
the models that we have; my entire career revolved around telling
electrons and photons what to do. But I do not know if they "truly"
exist. As a string theorist, I would think that you would agree.
I consider that modern epistemology is better than medieval
epistemology. Why? Because not only is truth based upon logic and
derivation and prediction from theory, but also because evidence is
the final word.
Abstractly speaking, modern epistemology is better than medieval
epistemology because it assumes that evidence and truth should be
coherent. This implies that knowledge is consistent with a state of
affairs, and thus encompasses a bigger spectrum than knowledge as just
derived from self evident propositions.
However, following this train of though, one would think that the most
complete epistemology is the most advanced. We thus arrive at the
ancient pythagorean belief that "everything is one". This is, by
necessity the most complete. But I do not consider it an advance of
epistemology. Therefore, I am confused as to what could be
considered an advance in epistemology. Surely epistemology is not
just scientific advancement.
- travis.
By the same token, one would not be able to say if *anything* 'truly'
existed.
So what is the point of making a statement as "But I do not know if
they "truly" exist.", because even if it did, you would never know.
Everything is at best, a model, a fit, a hypothesis.
Correction. Everything save sensations (arising from external or
internal causes). Those we can nail down with true or false. But we can
never convince another person of their truth value.
What a mess!
-Souvik
That's exactly why you, Sam, Zinnic, me etc...are so violently fighting
at times.
Because the truth doesn't exist, but such non-existence is
unacceptable.
We have working models and we love to export them. See Iraq.
I'm not trying to convince you of anything, though......
Best regards
Tonguessy
In other words: we don't (can't) know if the truth exists, but the
non-existence of the truth in unacceptable. Does it make any
difference, anyway?
In your message:
http://groups.google.com/group/epistemology/msg/1a6822b43c3bb746
"The purpose of language is to communicate. As far as I can tell,
Tonguessy looks for every possible reason NOT to communicate, finding
all flaws in the incoming message and using these flaws as the reason
to reject it. All messages generated by humans have flaws. The idea
is to apply corrective measures so that the message can be read in
spite of the flaws. So far, Tonguessy is wasting bandwidth by
pretending to want to communicate while playing games with us. Get
real or get lost! "
We must be agnostic (no gnosis, no knowledge) about the truth. You
claim that i'm finding "every possible reason NOT to communicate". But
this is only your truth. My truth is just different. See the paradox?
"Get real or get lost!" I think that the black pixels in white screen
representing my words are real enough to witness how i care about
communicating. Whether i, you, or anyone else convey anything through
those pixels is just another story deeply rooted in what value we give
to our truths generating our models ruling our current lives.
Again, i can't convince you of anything. And i find this a wonderful
thing.
Unless you (or anyone else) finds and applies "corrective measures so
that the message can be read in spite of the flaws" we have the freedom
to misunderstand and to be misundestood. Torquemada and the Holy
Inquisition never offered such a chance, and the "corrective measures"
consisted in burning at stake.
Best regards
Tonguessy