Tag: The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos
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A (final) speculation from “The Hidden Reality”
I have just finished Brian Greene’s The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos, so want to take this opportunity to once again endorse it and also to restate or reprise one of his speculations in the book: this time one grounded firmly in computing rather than string theory or conventional…
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Why isn’t the universe of infinite density?
Another speculation produced by Brian Greene’s The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos. Imagine the universe was infinite (along the “quilted multiverse” pattern – namely that it streched on and on and we could only see a part). That would imply, assuming that the “cosmological principle” that one bit of…
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Cosmologists’ problems with aleph-null and the multiverse
This is another insight from Brian Greene’s book The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos – well worth reading. Aleph-null () is the order (size) of the set of countably infinite objects. The counting numbers are the obvious example: one can start from one and keep on going. But any…
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The Copernican principle and the multiverse
Thinking about this leaves my mind in a bit of a twist, but it is worth exploring. I am still reading Brian Greene’s The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos: a great book (just enough maths in the footnotes to make me feel I haven’t completely lost touch yet with…