The Edge of Knowledge/The Known Unknowns Book Tidbits 2: Indirect Knowledge that a Multiverse Exists?

The second of a series of scientific tidbits/teasers from my new book coming out May 9th in the US and May 11th in the UK..

Following on last’s months posting, and up to the release date of my new book in May, I will be posting brief excerpts here on Critical Mass. (The book itself is available for advance purchase on Amazon and other online retailers.) Today’s tidbit involves a speculative topic that has fueled the imagination of physicists and others…

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There has been a great deal of discussion of the possibility that our universe is part of a ‘multiverse’ of universes. If this is true, it has dramatic implications for our understanding of the fundamental physics of our universe. Some have argued that claims about the existence of a ‘multiverse’ is not very different than a religious belief in a deity.

One of the things that differentiates the two is that we might be able to get evidence, albeit indirect, about the existence of a multiverse. This would be remarkable, if true, and in this brief excerpt I allude to where the evidence could come from, and note how it is not that different, in spirit, from another indirect discovery, from 20th century physics.

The possibility of a multiverse provides remarkable fodder for the imagination, as I describe later in the chapter. But whether it really exists or not remains, at present, one of the interesting known unknowns in cosmology today…

These short excerpts are available to everyone, but if you are interested in gaining access to the other, paid, content on Critical Mass, here is a special offer available now….