On 2/15/2014 1:08 AM, Bruno Marchal wrote:
On 14 Feb 2014, at 18:06, meekerdb wrote:
On 2/14/2014 1:25 AM, Bruno Marchal wrote:
On 13 Feb 2014, at 20:56, meekerdb wrote:
On 2/13/2014 3:29 AM, Bruno Marchal wrote:
On 13 Feb 2014, at 12:07, Quentin Anciaux wrote:
2014-02-13 11:52 GMT+01:00 Bruno Marchal <[email protected]
<mailto:[email protected]>>:
On 13 Feb 2014, at 09:44, Quentin Anciaux wrote:
2014-02-13 9:32 GMT+01:00 Bruno Marchal <[email protected]
<mailto:[email protected]>>:
On 12 Feb 2014, at 21:47, LizR wrote:
On 13 February 2014 09:18, Bruno Marchal <[email protected]
<mailto:[email protected]>> wrote:
<snip>
It is like a dream, or a simulation implemented on the real physics.
hence F=ma cannot be universaly true if comp is true.
So if you extract "F= KmM/r^2" from comp, and you refute it ostensibly (by flying)
then you can infer that either comp is false, or you are dreaming (or you are in a
simulation, done, not by the UD, but implemented on the real physics which is not
done by the UD but supervenes on the whole UD in a non computable).
You are right that we don't test just comp, but comp + theaetetus + we are at the
base level of physics (not dreaming or simulated at a higher level). OK? (I think
se have discussed this before, but it is OK to come back, as this is not so easy).
So no matter what is refuted we can save comp by saying that it is true but at a
lower level and what we have observed that appears to refute comp is a dream or
simulation at a higher level.
Of course the converse of this is that no matter what we observe then it cannot
confirm comp.
I guess you mean "cannot prove, or confirm in some definitive way, comp".
No, I meant something stronger than that. I meant that what we observe cannot count in
favor of comp.
According to Deustch, nothing can count in favor of any theory. We could only refute a
theory, but positive confirmation does not lake sense, according to him. I am not
sanguine about this, and I can make sense that a non-refutation can add credence to a
theory, but not that much.
What most adds credence is a surprising prediction that is empirically
confirmed.
Brent
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