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Re: [lojban] Objective Reality & krici (was: Random lojban questions/annoyanc...



In a message dated 3/20/2001 8:09:36 PM Central Standard Time,
xod@sixgirls.org writes:


, I return to my originalchallenge: Show
me a case of a belief without any evidence, for commonly used definitions
of "evidence".

American Heritage: ev·i·dence n. 1. A thing or things helpful in forming a
conclusion or judgment:
I take it that the things must be propositional since only propositionscan
enter into forming a conclusion; ordinary things enter only as they become
the subjects of claims (not necessarily uttered or even consciously
formulated).  Alternatively, this could be about the causes of judgements
(not conclusions,  of course), though I doubt that most people would agree
with this (the claim that Berkeley's  immaterialsm was caused by his bad
toilet training is usually called ridiculous, for example).  As written, it
would include the abacus used to calculate the area of a room from the floor
measurements.  Pretty useless, then.
Webster Collegiate: 1.a. an outward sign b. something that furnishes proof.  
a. doesn't seem too relevant, but b. seems spang on, aside from "proof"being
somewhat more than we can usually hope for, so taking that as "gives support
for claims."
It does not seem that causes enter into this at all and that seems quite
right, contrary to xod's opinion that they are evidence in some cases.

So, if we ignore causes, then sense-data claims, e.g., "I have a yellowpatch
in my visual field," are beliefs that do not have evidence.  If asked to
justify/give evidence for that belief, the experience can answer at best "I
have this experience" (even "am having") and when asked evidence for this
second claim, surely can't do anyhting more than say, "I just am."  
Admittedly, we would ordinarily not ask for evidence in these cases, taking
the experiencer's word for it -- and that, in itself, suggests that we
recognize that evicence is not to be called for in these cases.  And the same
pretty much applies even for more complex cases: "I see a robin on the lawn"
and the like (though, for many of us, "I see a UFO" will probably require
evidence and most of the complex cases could be called into question in
certain situations).

If we let causes in as evidence, then presumably sense-data claims have
evidence in this sense.  But then the claim that every belief has evidence
becomes trivial, since like every other event, beliefs have causes, hence, on
this view, evidence.  And, on the other hand, we find among the evidence for
the structure of the benzene molecule Kekule's dream of Ouroboros, which
would normally be thought irrelevant.  If we restrict the cases where causes
are evidence to those cases which lack any other kind of evidence, thenthis
appears to be an ad hoc definition, designed simply to make the generalclaim
true, despite flying in the face of ordinary usage.  so, let's drop causes
once and for all.

Then I say that no belief as such has evidence.  That is, the status of being
a belief does not in any way depend upon evidence.  This is clearer in the
case of {krici} than of "belief,"  because {krici} overtly has no place for
evidence (or even epistmology) and, in fact, has "not based on evidence"
written into the definition (indeed, that is where this all began).  The
matter of evidence comes up only when the issue is whether the belief is
justified, and that presupposes that it is already a belief.  People do not
usually (indeed, it is hard to come up with a contrary case) come to their
beliefs on the basis of evidence  -- back to the old issue that belief is not
volitional, if nothing else.  They ahve the beliefs from whatever cause and
then try to justify them as best they can when they are challenged.  Even the
cases of "believing because of the evidence" in fact involves a number of
other factors than the evidence itself (believing the evidence being a major
one).  

Now, xod's point may be simply what it says on the outside, that there is no
belief for which there is not evidence, not anything about how one comes to
believe or what constitutes a belief, but an empirical claim about beliefs in
general.  I don't know how one would go about proving such a claim.  As I
have said, there is probably no belief so bizarre but that something could be
taken as evidence for it, maybe even something we accept as true (look at all
the things that have been taken as evidence for the existence of God --or
for God's non-existence, for that matter).  I'm not sure that I would want to
buy into this, especially if what one came up with -- for "There is a unicorn
in the garden," say -- is not something that the claimant did not propose.  
Nor would I want to accept something whose connection to the claim was also
not something the claimant could explain.  I think that the resulting claim,
for everything thing that x believes there a true claim that x would make and
which is plausibly connected to the belief as support, would be hard toprove
and might, in fact, be easy to disprove. I believe (let us imagine) that I
have squared the circle.  The evidence is a number of scribbled pages which I
claim constitute a proof of the construction I offer.  The claim is plausibly
connected to the belief, but it is false.  Does it constitute evidence?  If
yes, then we have to drop the "true" part above.  And then again, the whole
become trivial: the hoof prints that no one else can find, the gouges that no
one else can see, the white hairs in the bushes, etc. are all evidence for
the unicorn in the garden, even though the claims about them are all false.
So, of course, I can fadge up some evidence, as long as it does not have to
be true.

Maybe, what we have in a psychological principle: no one believes anything
unless he believes he has evidence for it.  This is more plausible,  though
the beliefs of small children might constitute difficult cases (but that just
may be the difficulty in formulating those beliefs to begin with) -- orthey
may all come down to "So-and-so told me so."   The sense-datacases would
also be a difficulty, but, happily, they almost never occur, and, when they
do, there are usually factors about the environment that allow for reasonable
evidence to be formulated.  The obvious possibility for infinite regress can
be handled in the deep-sea ship-repair sort of way, taking care of one step
at a time and, provided no circle turns up before, stopping at a point of
agreement between challenger and challenged (or, for radical disagreements,
when they get tired).