The Arrow of Time feat. Sean Carroll

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Uploaded by on Nov 13, 2011

Why is the past different from the future? Caltech physicist Sean Carroll explains how the arrow of time is not an intrinsic property of physics, but rather an emergent feature.

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  • So basically: time is a big ball of wibbly-wobbly timey-wimey stuff.

  • @LiftMyEyes121 You are speaking gibberish, stop talking that gibberish, no one understand y-Whoa did that statue move? *blinks* OMG IT MOVED AGAIN. *blinks* *dissapears*

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All Comments (1,702)

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  • @CBDiEvAl Clever

  • @rich1051414 All 3 answers were correct. 1) Time the speed of flies as quickly as you can 2) Certain flies enjoy an arrow 3) Time goes by quickly.

    en(dot)wikipedia(dot)org/wiki/­Time_flies_like_an_arrow

  • @CBDiEvAl Flies... Time is a noun in that context, like is used as a preposition with arrow the noun used for comparison...

  • Is it possible that gravity is the root of anti entropy. Bringing everything back into it fundamental state (star formation or black hole) then from that point the cycle starts again. What we need to discover is the end of life of the black hole. Maybe the black hole is the beginning of the end? Time starts in the black hole as it transfer energy into a parallel world. If we can calculate the mass of the universe can we assume that includes the matter contained stuck in a black hole.

  • @rich1051414 Speaking of arrows and time. "Time flies like an arrow". Which word is the verb: time (plan, schedule), flies (moves through the air) or like (enjoy)?

  • @rich1051414 lol i've heard of this paradox before.

  • @ImperiustheGreat All Entropy does is make that harder and harder. There is a theoretical state called Maximum Entropy which is... bad. Luckily, the universe will (probably*) end before we get there.

    *I do not claim to be able to speak for the possibility of supermassive fuel sources outside the observable universe keeping it going with radiation or collisions or whatever creepy properties that one Supermassive Object outside our range must have.

  • @bobthetomato29 That depends on whether YOU remember it, and what you think about Shroedinger's petcare.

  • How's this for a conundrum... If you do something, but there's no evidence of it happening and no-one and nothing remembers it, did it still happen? O.o

  • @LyperArts You are created a fallacy. The God of the Bible is the external Creator of the Universe,but before the Universe was,God was. And is. Beginning and the End. Also,yes it does..

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