Time is real! Thats my position, anyway.rnMore specifically, time isn't real in the same way that a basketball is "real" - it's not something you can poke at or hold in your hands. Instead, we should say that time - like space and quarks - is "real" if it is a useful concept in our best understanding of how the universe works. And that's certainly true. In every theory that we have - Newtonian mechanics, relativity and quantum mechanics -time plays a central role. That's not to say a better theory won't come along where time isn't fundamental, butrneven then, that theory will have to show how time emerges to play such an important role in how we perceive the world.
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