On 12 Feb 2014, at 18:58, meekerdb wrote:
On 2/12/2014 3:27 AM, Bruno Marchal wrote:
On 12 Feb 2014, at 02:22, meekerdb wrote:
On 2/11/2014 10:21 AM, Bruno Marchal wrote:
What Everett did for the quantum universal wave, we can do that
on any universal system, and comp predicts that this will always
give the same physics.
How does it predict that?
All universal systems produce the same collection of all
computations, with exactly the same redundancy.
Physics emerged from that set of all computations. So physics must
be the same whatever pho_i are chosen for the ontological base.
That doesn't follow. If there are disjoint worlds, as contemplated
in some versions of cosmology, they may have different physics.
Nice, comp predicts that this is impossible, although I can agree this
is a matter of semantics, as I define a physical laws to be true for
all universal machines, so disjoint worlds will have only different
geographies.
You seem to be making your claim a tautology by saying whatever your
theory produces is physics, even if it's not any physics we know
of. That makes it impossible to test.
Why, the physics we get is non trivial. It is as much testable than
evolution. It explains where the laws of physics come from, and much
more. It is extremely testable, given that it gives the laws, and it
is enough to find one natural phenomenon contradicting Z1* or X1* to
refute comp (+ Theaetetus). But this needs more on "AUDA", so let us
not anticipate everything too much quickly. You jump from step 3 to
step 8, and then to AUDA. Well, it is interesting, but like Liz said,
we have to do the dinner and that kind of things of life, if we want
to continue the discussion in decent condition.
See you,
Bruno
Brent
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