Bruno Marchal wrote:
On 25 Jun 2015, at 14:27, Bruce Kellett wrote:
And that is singularly uninteresting, because it does not even come
close to relating to the real world.
Well, if comp is true, it is the real world. Come on, it is just
arithmetical truth, plus intensional computer science theoretical higher
level description.
But it gives no useful results!
It is computer science. You seem to forget the tautology: comp uses
computer science. We tackle a very complex, deep and hot question.
You argument is of the type: show me how String Theory can improve the
quality of the pizza.
Nothing like. All I ask of string theory is that it gives some results
that correspond to observation -- like a derivation of the Standard
Model from more fundamental principles. But it has failed to do this,
even after 30 or more years of effort. So that even string theorist have
given up on this endeavour. So string theory has failed as a theory of
physics, just as comp has failed as a theory of anything at all.
It is interesting that string theorists, for a while, felt that physics
might be deducible from the statistics of the worlds corresponding to
the 10^500 or more possibilities in the landscape of possible windings
of the Calabi-Yau compactification spaces. This failed too, so most have
given up on even this. String theory, at the latest conference, Strings
2015, has been reduced to discussion of some outstanding mathematical
issues -- they have given up on relating the theory to the real world or
ever coming up with a testable prediction that is borne out. (There are
plenty of testable predictions from the like of Gordon Kane that have
failed as each new wave of data has come from the LHC.) So, despite
repeated failures and falsifications, the die-hards refuse to abandon
their failed theory. Rather like comp, actually.
Bruce
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