home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: alt.atheism
- Path: sparky!uunet!spool.mu.edu!yale.edu!yale!gumby!destroyer!fmsrl7!lynx.unm.edu!nmsu.edu!usenet
- From: epowers@mccoy (POWERS)
- Subject: Re: Evolution implied by the Bible
- Message-ID: <1993Jan26.003027.15679@nmsu.edu>
- Sender: usenet@nmsu.edu
- Organization: New Mexico State University
- References: <1993Jan21.131914.8194@dcs.warwick.ac.uk>
- Date: Tue, 26 Jan 1993 00:30:27 GMT
- Lines: 115
-
- In article <1993Jan21.131914.8194@dcs.warwick.ac.uk>
- simon@dcs.warwick.ac.uk (Simon Clippingdale) writes:
- > In article <1993Jan21.030021.7771@nmsu.edu> epowers@dewey (POWERS)
- writes:
- > >In article <1993Jan19.180420.14477@dcs.warwick.ac.uk>
- simon@dcs.warwick.ac.uk (Simon Clippingdale) writes:
-
-
- Having said
- > that, you seem to imply at other points in your post that such 100%
- certain
- > knowledge isn't possible in principle, supernatural or no, so I wonder
- > whether I have misunderstood your position.
-
- I couldn't say that, no. I do think 100% certainty is possible,
- but not within the context of science, where we pretty much just disprove
- the worse of two hypotheses. We'll get to this, I'm sure!
-
-
- An example of a self-contradictory thought is
- > > "I cannot know anything with 100% certainty", because, to say this, I
- > > would have to be 100% certain that it was true.
- >
- > Well, we very nearly agree on what the problem is, but not on how to
- react
- > to it. There are clearly problems raised by the idea of 100% certainty,
- and
- > thus the whole realm of black'n'white language
- (`true',`false',`proof',`know',
- > and the like). But I see no need to panic and resort to supernature when
- just
- > the rephrasing of your example as "I *probably* cannot know anything
- with 100%
- > certainty" will do, and is internally consistent, and is closer to being
- > appropriate language for the kinds of stuff neurons do anyway (more
- below).
- >
- >
- > > The reason I can't accept the idea that all phenomena are the
- > > result of natural occurrences is that it leads me to say that I can't
- > > trust my own thoughts, which I reject on the basis that it throws me
- into
- > > an infinite loop, and also contradicts the inherent assumption I had
- at
- > > first that I could trust my own thoughts (at least to some extent).
- >
- > Does the contradiction go away if you *probably* can't trust your
- thoughts?
- > I would have thought it does.
-
-
- I don't see that it does. Exactly how "probably" is "probably"?
- Oh, dear, that's poorly phrased. Well, what is the ratio of true thoughts
- to untrue ones on average, in the human brain? And how likely is it that
- your statement "I probably can't trust my thoughts" is not a brainfart, a
- neural misfiring? Also, if neurobiological data, on examination by
- brilliant human minds using statistical tests also conceived by brilliant
- human minds seem to indicate an untrustworthiness of the human mind, do we
- toss the mind, or the data, or the method?
- Actually, I think saying "I probably can't trust my thoughts" is
- in every way as bad as saying "I cannot trust my thoughts". We still have
- no way of distinguishing between true thoughts and false thoughts. At
- very least, any method we come up is "probably" wrong.
-
-
-
- Furthermore, this is as much certainty as can
- > be expected if thoughts are purely natural phenomena anyway, since
- neurons
- > are very noisy things with finite bandwidth and all sorts of drift and
- > instability. But that's OK, because they're only required to do
- statistical
- > stuff to within acceptable limits of accuracy. You can't expect better
- than
- > `probably' out of a bunch of neurons, and the apparent contradictions
- arise
- > when you get into rigid language which is inappropriate for describing
- > thought if indeed thought is the operation of such natural and
- statistical
- > processes.
-
- That sounds just like what happens when we try to discuss various
- aspects of "God". "Rigid language that is inappropriate for
- describing..." I like that!
- >
- >
-
- >
- > I think the problem lies right here in the natural world, and in the
- rather
- > paradoxical tendency for large groups of neurons, working statistically,
- to
- > decide that they want to treat everything as black and white. Our
- conscious
- > brains are just *so* much happier with the language of sharp divisions.
-
- "How sure are you of this, and why?" I think if you try to answer
- this, you'll eventually come down to the idea that you have to trust your
- thoughts at some level. Otherwise, you can't get anywhere. Or is there
- something I missed?
-
- Erik Powers
- >
- > Cheers
- >
- > Simon
- >
- PS Apologies to Ray Ingles for misunderstanding his position last time
- round.
- The leg's in the post.
-
- I hope you didn't send it by United Postal Service. The last time
- my family had a large chunk of meat shipped to them, UPS never put it in a
- freezer. The bacteria had a great time, but I'd hate to see Ray's
- disappointment if your beautiful limb got all slimy that way.
-