"People have been talking about multiverses as a philosophical idea for a long time. But the current incarnations in physics, I think, are more indicative of problems with some things going on at the frontier of physics than ideas that are gonna last."

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We are still a pioneer culture in some ways. A pioneer culture has to put all of its muscle into surviving on the frontier and pushing back the wilderness. So when you start to talk about imagination, inner space, and the structures of the psyche, that becomes scary.

— Jean Houston