> On 2 May 2018, at 15:51, agrayson2...@gmail.com wrote: > > > > On Wednesday, May 2, 2018 at 1:31:51 PM UTC, scerir wrote: > Here below a point made by Asher Peres. > > ---------- > > One can even think of an experiment exhibiting the interference pattern > between the cat alive and the cat dead. > > If such an experiment could indeed be performed, then the phase θ in the state > > ψ = 2-1/2[ |live> + exp(iθ)|dead>] > > would be meaningful. > > One could then resuscitate dead cats in the following way: Take an ensemble > of dead cats and measure on each one of them the projection operator on state > ψ. > > In 50% of the cases, the state of the cat will become ψ. > > Now measure whether the resulting cat in state ψ is alive or dead. > > In 50% of the cases, it will turn out alive. > > I did not say this is impossible, but only that I don’t know how to construct > the ψ-measuring machine. > > > Is the "I" you or Ashe? I don't really follow this. If you have time, you can > expound a bit on what he's trying to say. AG
Belinfante made the same argument. It is elementary quantum mechanics, and the argument is just above, although you can presented it without using the exponential. I have not time right now. Like Peres, I don’t see how to build the {dead+alive, dead-alive} measuring device, but I do see how I can emulate it with Deutsch quantum universal Turing machine. (Which is Turing emulate and so arithmetic emulates a quantum universal dovetailer, BTW. But if it is the winner, that has to be justify from number self-reference logic (as I have explained, or see my papers). There is no way to do that in practice, without either progressing a lot in the art of isolation (of cat and poison) or by entangling oneself directly by a quantum suicide technic (but here the chance might grow to find yourself “elsewhere”, dreaming only having resuscitate the cat!). I think Peres is not quite open to MW, but for me MW is just the QM without collapse, and the collapse is only a speculation that QM is wrong somewhere. Grayson, this list is born from people appreciating Everett MW, and open to generalisation of it, “everything” means that we bet the whole is simpler than any of its particulars. Indexical Mechanism, used by Everett, entails a theory of all computations (which, with Church Turing thesis) are provably emulated in virtue of a tiny fragment of the arithmetical reality. This adds a new problem: justifying the wave from a sum on all computations, modalised by the constraints imposed by self-referential correctness. It actually works retrieving an intuitionist logic for the first person, and a quantum logic for what it can observed. The advantage is that, thanks to the truth/assertable distinction, we get both quanta and their extended qualia (which obeys also type of quantum logic). In both the universal wave/matrix, and in any universal machinery can look at the consistent histories gluing dreams into realties, conveying, or not toward reasonable notion of world. So the SWE/Dirac/DeWitt-Wheeler equation must be retrieved from the sum of the relative possibilities of the universal machine. You need to know enough of computer science to know that the notion of universal machine, and computations, are arithmetical notion, definable entirely in the language of first order arithmetic. Many take granted a primitive or primary physical universe or multiverse, but what can be proved is the existence of a multi-dream in arithmetic, with laws explaining how the sharable first person plural dreams can converge to local appearance of “universe”. I have no clue, nor even opinion if mechanism is true, but it is a fact that the universal machine, in the sense of Turing, have a quite surprising theology, in the sense of the Neoplatonists. So we can test the intuitive consequences (due to our embedding in infinitely many computations) and the formal consequences, like the appearances of a quantum logic. Bruno > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-list+unsubscr...@googlegroups.com > <mailto:everything-list+unsubscr...@googlegroups.com>. > To post to this group, send email to everything-list@googlegroups.com > <mailto:everything-list@googlegroups.com>. > Visit this group at https://groups.google.com/group/everything-list > <https://groups.google.com/group/everything-list>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.