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Philosophy

The Nature of Possible Worlds and Modal Realism

Quick fact

David Lewis's modal realism claims that there are infinitely many concrete possible worlds, each as real as our own, but they are causally isolated from us—so we cannot ever travel to them or observe them.

Why this is interesting

Ever wonder what it means for something to be possible, but not actually happen? Modal realism has an answer so bold it can bend your mind: those possibilities are just as real as the world you're in right now.

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The Nature of Possible Worlds and Modal Realism

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