Hi Jason,
Le 04-nov.-08, à 23:21, Jason Resch a écrit :
> Bruno,
>
> Thanks I understand now. I must have misread previous posts of yours
> because I had thought you had said "if I = the world, then the world
> is not turing-emulable", but what you are saying is that "if I = the
> world and the world is not turing emulable then comp is false".
Exactly. Thanks for acknowledging.
> Regarding step 6 I believe one's consciousness continues if they were
> to "upload" their brain into a computer even if it necessitated the
> destruction of their biological brain. To me this is no different
> logically from teleportation,
And that is all you need for going to the next step.
> although I agree with Brent, if the simulated world in the computer is
> entirely cut off from causal effects of the physical world where the
> computer is running, then you have also created an entirely new
> world/reality.
I agree with this too. The only thing necessary to understand step 6,
is that you do survive there like if it was teleportation. And in that
context, the calculus of probability remains the same as in the five
preceding steps. For example, if you understand step 5, you know that
if a instantenous of you is done, and is not detsroyed, and if that
copy is reinstantiated in the virtual Moscow tomorrow, and in the
virtual Washington in one billion of years, the probability that you
will "stay here" (and not find yourself in the virtual realities) is
1/3 (assuming 1/2 for perfect duplication). It means that Nozick's
closer continuer identity theory fails with comp.
If you get this, I guess you are ready to understand step 7.
I would be pleased to know if you get the step 7. If everyone agree
with step 7, we can proceed to step 8, which is a bit more difficult.
In my older presentations (like my PhD thesis), I always begin with
step 8, and I call it "the Movie Graph Argument". The older UDA was
only 1...7. Only 1...7 shows that comp transform physics into a
computer science probability calculus. The Movie Graph Argument singles
out the difficulty to attach mind to matter, or consciousness to
physical activity, oncer we *assume* the comp hyp. It is the Movie
Graph Argument which shows that we don't have to run the UD in a
concrete way.
Bruno
http://iridia.ulb.ac.be/~marchal/
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Received on Wed Nov 05 2008 - 05:53:33 PST