Eric Kohn's Dad Explains Source Code ⇒
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Joanthan Poritsky
A physicist who identifies himself these days as a “cyber-control scientist,” my dad (whose bio you can read here) loves to dig into the feasibility of pop culture narratives.
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It’s true that time is reversible, but entropy is not. They created a disorder and they have to bring back the order in an alternative universe. I can conceive of that. But you can’t violate the second law of thermodynamics.
This is, perhaps, the best film blog post of 2011. Definitely worth a read whether you like the film or not.