On 1/16/2014 5:49 PM, Jason Resch wrote:
On Thu, Jan 16, 2014 at 7:31 PM, meekerdb <meeke...@verizon.net <mailto:meeke...@verizon.net>> wrote:On 1/16/2014 1:57 PM, Jason Resch wrote:On Thu, Jan 16, 2014 at 3:54 PM, meekerdb <meeke...@verizon.net <mailto:meeke...@verizon.net>> wrote: On 1/16/2014 10:06 AM, Jason Resch wrote:On Thu, Jan 16, 2014 at 11:37 AM, meekerdb <meeke...@verizon.net <mailto:meeke...@verizon.net>> wrote: On 1/15/2014 10:59 PM, Jason Resch wrote:On Wed, Jan 15, 2014 at 6:46 PM, <spudboy...@aol.com <mailto:spudboy...@aol.com>> wrote: Ok, speculatively jumping into the Tegmark book, which I am plodding through and his 4 levels of the multiverse, I need to throw out this question. Is it even possible, in principle, to physically traverse into another universe, a parallel universe, and then back again? I do not mran in the David Deutsch sense of performing cross cosmic quantum calculations, but directly, mollecularly, boots on the ground, traveling there and back again? Molecularly, I'd say no, but consciously I'd say yes. If we froze you on Earth, and then coincidentally Aliens 100 trillion ly away from us made an exact version out of you out of matter they had on hand, and then they thawed you, you would travel these 100 trillion ly. This journey is impossible for matter or energy to make, impossible for anything physical, yet your consciousness did it. For the same reason, someone in an altogether different physical universe could do the same thing and enable you to travel there. There would be no causal link, however, to whatever memories you formed in that universe and whatever version of you we create to unthaw and bring you back, it would be again an entire coincidence for us to get it just right so the one we thaw matches the one the aliens in the distant land decided to freeze. In a sense, we are performing these traversals all the time, but only between distant universes similar enough to the one we are in a moment before, that we don't notice it. You might be sitting there quietly in Earth #313812031 one moment, then the next instant you are actually on Earth #173119389 (which was an Earth that reappeared after 10^200 cyclical big crunch and big bang cycles) from the moment you were just in.But then you've made incomprehensible nonsense of what is meant by "you". How so? Just because you can't attach your consciousness to a particular collection of atoms at a particular time and place? "You" are something different than those atoms., as our metabolism proves daily.You can't attach it to anything - or even to it's own history, since you discard memories. It has nothing to unify it into being an "it". No memories were discarded in the above. In fact I specified that the brain states be exactly equal at each freeze/remote thaw cycle.OK, I missed that point. But I still see no sense that can be made of a statement like "You might be sitting there quietly in Earth #313812031 one moment, then the next instant you are actually on Earth #173119389" Are you supposing that the Earth you are sitting on has nothing to do with what future is more probable and that some other Earth might be a more probable continuation - Each one has an equal weight in my mind. and in what sense it would an "other" Earth if it was compatible with you can your memories?In no subjective sense are they different, only from a God's eye view could you see the difference between them. We might not have a way to keep a tally of how many collapse cycles our universe has undergone, but if someone were simulating the physics of this universe they could count the number, and how frequently exact replicas of Earth, or you, appear in them.
But if it were an exact replica it would be the same one - especially in a computational/information model. Remember Leibniz's identity of indiscernibles.
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