Is Bill and Ted the most realistic time travel movie of all time?

What are the dumbest tropes in time travel fiction? This week on the io9 show, we recount the temporal storylines that drive us nuts. And then we catch up with Caltech physicist Sean Carroll, who explains how time travel could happen in real life — and why Bill and Ted's Excellent Adventure might be the most plausible time travel movie ever made!


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Hold up... Do girls get turned on by gay guys in the same sort of way most guys like lesbians?