Re: what happens to the wave function of the universe as systems Spike

From: Damien Broderick (
Date: Sat Aug 03 2002 - 01:29:10 MDT

FWIW, David Deutsch comments:


It definitely isn't compatible with ordinary quantum mechanics. You can't
'travel to another universe', or make information do so.

In the presence of closed timelike lines, however, you can. I once suggested
-- I think it was in my original time travel paper in Phys Rev -- that this
might explain the Fermi Paradox.


So much, perhaps, for McFadden (but then nobody takes his views seriously,
I guess). I'm also not sure that David understood my rather garbled
proposal, but there you go.

Damien Broderick

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