TIME’s resident science comedian Brian Malow asks a simple question: Is time travel really possible? According to Hollywood, it’s already happened, but if you ask world-renowned physicist Stephen Hawking, the answer is no. A few interesting paradoxes keep the nay-sayers with plenty of evidence, namely that if time travel were possible, we would already have seen travelers from the future.
Oh, who cares about a paradox—that’s never stopped mankind from trying something crazy.
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