Wednesday, October 22, 2008

Tipler's back

How to test the many worlds interpretation of quantum mechanics

Frank Tipler, the physicist who every other scientist thought went over the top with "The Physics of Immortality", only to see him outdo his idiosyncratic application of science to religion in "The Physics of Christianity," has recently published a possible way to test whether the "many worlds" interpretation of quantum physics is correct.

How neat. We may soon know if there are multiple versions of ourselves spread out across the multiverse. Can you imagine the number of books that would be written on the philosophical implications of that? (Well, there probably are quite a lot already, but establishing that it's true would be a philosopher's playground for another century or two at least.)

My hunch, however, given the vigorous debate that already goes on about what quantum physics means, is that most scientists won't accept that Tipler has provided a proof at all. (The fact that he starts using capital letters in one part of the arXiv paper is not too encouraging.)

Still, many years ago on The Science Show (Radio National), I remember someone was talking about a potential way that MWI might be testable in future. I can't remember the details, but it was certainly different to what the relatively simple method Tipler is suggesting.

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