An unwelcome consequence of the Multiverse Thesis |
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Authors: | N Effingham |
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Institution: | (1) University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0119, USA |
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Abstract: | The Multiverse Thesis is a proposed solution to the Grandfather Paradox. It is popular and well promulgated, found in fiction,
philosophy and (most importantly) physics. I first offer a short explanation on behalf of its advocates as to why it qualifies
as a theory of time travel (as opposed to mere ‘universe hopping’). Then I argue that the thesis nevertheless has an unwelcome
consequence: that extended objects cannot travel in time. Whilst this does not demonstrate that the Multiverse Thesis is false,
the consequence should give pause for concern. Even if it does not lead one to reject the thesis, I briefly detail some reasons
to think it is interesting nonetheless. |
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