Q: Is it possible to experience different rates of time? If time were to speed up, slow down, or stop, what would you experience?
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Physicist: It depends a little on how you define “experience”, but in general you’ll always experience time moving in exactly the same way. The “twin paradox“, is a real-world example of time genuinely passing at different rates for different observers (although the mechanics of exactly who saw what and why takes a little hashing out). However, without exception, in all of the examples from physics in which time passes at different rates, it’s always someone else’s time that’s affected. By the way, even the fastest creatures aren’t generating any relativistic effects (not even close), different time rates are all in their head. What’s deeply weird is that different creatures and even different people can genuinely think at extremely different rates!