On 23 Oct 2012, at 15:35, Roger Clough wrote:
Hi Bruno Marchal
Nothing is true, even comp, until it is proven by experiment.
Then your own consciousness is false, which I doubt.
Then the existence even of the appearance of a physical universe is
false.
Etc.
Since Gödel, we know that, even limiting ourselves to 3p truth on the
numbers relations, almost all the true one are unprovable in any theory.
Truth is *far* bigger than proof.
And concerning reality, in science there is no proof at all, as easily
explained by the antic dream argument. In science we never prove
anything about reality. We postulate theories, and prove only things
*in* the theories. Then experiment can disprove a theory, but never
prove it to be correct.
Except QM, all theories in physics have been refuted at some time.
Can you think of an experiment to verify comp ?
To make comp scientific, we can only show comp to be experiementally
refutable, and yes this has been done, using also the classical theory
of knowledge. COMP + classical theory of knowledge entails the
physical laws, so to refute comp you can compare the physics extracted
from comp, and the physics extraoplated from observation.
Bruno
http://iridia.ulb.ac.be/~marchal/
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