On 12/07/2017 11:25 am, Russell Standish wrote:
On Tue, Jul 11, 2017 at 03:04:13PM +1000, Bruce Kellett wrote:
On 11/07/2017 2:12 pm, Russell Standish wrote:
You're still missing the point. The quantum reality is a 1p thing, it
is the observed phenomenal physics. Substrate independence is a 3p
thing, and may be quantum, classical or whatever, just needing to
support universal computation.
Well, in the Everettian picture, the quantum reality is the whole
structure, multiverse or whatever. The 0p/3p picture of splitting
into separate worlds according to the unitary evolution of the wave
function is the quantum reality. The 1p view of this is just a
projection from the whole according to self-selection. If the
universe were classical, Turing machines could still exist and
support the computations underlying consciousness, but there would
be no splitting into many worlds.
Yes there is. That is the FPI result, which appears at step 3 of the
UDA. (The one that John Clark apparently has problems with, although
he's never clearly enunciated what problems he sees with it(.
Well, if that is what it is supposed to imply, then John might well be
right to have problems with it! As I have said before, there is no
analogy between step 3 and quantum many worlds -- the differences far
outweigh any superficial similarities. It is what I call the "cat = dog"
argument, though it probably has a more formal name: my dog has four
legs and my cat has four legs; therefore, my cat is a dog.
Bruce
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