An excellent talk by Sean Carroll explicating where the gaps are in Everett's MWI as
applied to cosmology and providing a solution to the Boltzmann brain problem:
https://www.youtube.com/watch?v=5TFy6Ben0Ho
Note that toward the end he seems to require a conscious observer to bottom out the
epistemology, i.e. to have a measurement actually made. Be sure to listen to the Q&A too.
Coincidentally, I came across Lubos Motul's discussion of MWI in which he has an extended
argument with Ron Maimon. I don't like Lubos's politics or his style or argument which is
arrogant and bombastic. In this case he is being very critical of Sean Carroll whom is a
very nice guy and I do like - but I think Lubos makes some fair points.
Brent
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