The Man of Many Worlds I
Hi-Phi Nation
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The Four Dimensions of Time Travel
David lewis thought about worlds as being determined by all the facts that are true in them, past, present and future. A space with no people in it exists before people get to it, and will continue to exist after people move out of it. Every future fact that is true of our world gets to define our world as much as every past fact does. Any alternative fact is only true in an alternate universe. So back to time travel. Time travel is violent and brutal n because it literally takes part of you and just dislocates it,. In a way that's weird but it helps to solve the dreaded grandfather paradox. Now here's another movie we know that doesn't happen
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