My favourite cosmologist Frank Tipler has a recent paper up on arxiv about intelligent life in the universe, and summarising the development of his end of universe theories first explained in length in The Physics of Immortality.
This one is under the arxiv section "popular physics" and is easier reading than some of his stuff. I guess I still have to work out what unitarity is, though, as it is rather crucial to his argument.
For the diminishing number of readers who have made it this far into this post: one of the things which gives me reservations about Tipler is his whole hearted endorsement of "many worlds" interpretation of quantum physics. Over at Quantum Quandaries there is a recent post arguing philosophically about "many worlds", and any post that deals with Kant and quantum physics is well worth reading, isn't it?
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