Gravity unexpectedly popular, levity suspected

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Not your grandfather’s gravity

Talk tomorrow at the Baltimore Science Fiction Convention:

Several possible modifications to Einstein’s theory have been proposed & may even have some experimental support; in addition to string theory & loop quantum gravity, is gravity a thermodynamic effect? Astronomers are looking hard at gravity waves in search of clues as to the origin of the universe (or even as to whether the universe had an origin), and …!

I’ve just finished the talk — main problem, too many interesting possible side channels — and have uploaded it as pdf,  keynote, power point, & html.  Comments welcome!

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