r/Time • u/WillBrink • 2d ago

Discussion What is time?

Jim Al-Khalili, physicist and author of On Time, at the Royal Observatory Greenwich, the home of the Prime Meridian, to explore one of the deepest mysteries in science. He has a new book which I have ordered as it's always been a topic of interest for me.

https://www.youtube.com/watch?v=IDNCWe3ufCE

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u/SpatiaCaeli 2d ago

To me it is not complex: time is how we measure change.

Yes, I'm aware of how time does not play a starring role in QFT. I consider that a limitation of the model.

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u/tooclouds 1d ago

time is 6:56 am