How big is the entire universe?

Re:How big is the entire universe? by nessus42 on Wednesday July 25, 2012 @11:23AM (#4291346)

If the universe is flat, and therefore infinite, yes it means that most probably there are an infinite number of identical duplicates of you. It does not mean, however, that there are any duplicates of you that make a particular typo. I should think that there are an infinite number of such duplicates for any given typo, BUT it may also be the case that such worlds are impossible. E.g., physics is deterministic enough and chaotic enough that there is no slight nudge to the initial conditions of a world that will result in such a minor eventual difference to occur.

I.e., just because there are an infinite number of parallel worlds, doesn't mean that every imaginable thing occurs in them. What occurs in a parallel world, must be possible.

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Re:How big is the entire universe? by mattstreet on Wednesday July 25, 2012 @12:24PM (#4291635)

I think you make a very important point. Even if the universe was infinitely large, there might be a point where past that the conditions can't exist that would allow something like our planet to function. For infinity to grant you duplicates of yourself the possibility must exist within that "zone of infinity". Gravity for example might be stronger or weaker.

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