On Thu, Sep 12, 2019 at 10:26 PM Alan Grayson <[email protected]> wrote:
> *> Carroll also believes that IF the universe is infinite, then there must > exist exact copies of universes and ourselves. This is frequently claimed > by the MWI true believers, but never, AFAICT, proven, or even plausibly > argued. What's the argument for such a claim?* > Of course it's been proven! It's simple math, there are only a finite number of ways the atoms in your body, or even the entire OBSERVABLE universe, can be arranged so obviously if the entire universe is infinite then there is going to have to be copies, an infinite number of them in fact. Max Tegmark has even calculated how far you'd have to go to see such a thing. Your closest identical copy is 10^12 light years away. About 10^76 light years away there is a sphere of radius 100 light-years identical to the one centered here, so everything we see here during the next century will be identical to those of our counterparts over there. And 10^102 light years away the is a exact copy of our entire observable universe. And all this is true regardless of if the Many Worlds Interpretation of Quantum Mechanics is correct or not, it only depends on the universe being spatially infinite. Is there a copy of you <https://space.mit.edu/home/tegmark/PDF/multiverse_sciam.pdf> * > Morevover, I don't believe a universe of finite age, such as ours which > everyone more or less agrees began some 13.8 BYA, can be spatially > infinite.* > I see no reason in principle why something can't be finite along one dimension and infinite along another dimension. John K Clark -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv2CDeSi9-9Bm%2Bq_2b_PaxMV1Z31ZbfAgZoEEPc%2B2PADqQ%40mail.gmail.com.
