I stumbled upon this article in the arxiv today, entitled Physics in the multiverse: an introductory review, which might be quite interesting.
The abstract is short and sweet
Anyway, I thought this may be of interest to some people here, since it seems to give a nice introduction to this idea of a multiverse. Note that most of the references are to articles that were written and are now encorparated in the textbook "universe or multiverse." These articles are mostly available freely on the arxiv; just google for the index of the book, then search the titles in the arxiv.This brief note, written for non-specialists, aims at drawing an introductive overview of the multiverse issue.
I'm not too keen on the multiverse. As explained in the first page of that article, although people say science must be testable, multiverse followers say that the multiverse is testable, in that we can do experiments in our universe and get a statistical answer for the multiverse. However, I don't believe that with a sample size of 1 (we can only measure our universe) there can ever be anything meaningful drawn from such analyses. Furthermore, the anthropic principle is used a fair bit in this sort of thing, which is something that many physicists greatly dislike.
Anyway, have a read, and/or let us know your thoughts on the topic.


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