Wanted to update my understanding of the physics of time since I last got caught up in college. Picked Carlo Rovelli’s Order of Time as a decent looking read. It is quite delightful. I’d forgotten how much fun well-written pop-science can be. Recommended.https://www.amazon.com/Order-Time-Carlo-Rovelli/dp/073521610X …
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Though there don’t seem to have been significant new developments since I last read about this stuff, Rovelli’s non-technical explanations are much clearer. Particularly enjoyed his explanation of light cones perturbed by curved spacetime and why time stops at event horizons.
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I still got lost trying to pop-grok what it means for the Dirac field to interact with the gravity field to create space-time-matter. I think I basically don’t get how to think with fields at some basic level, despite the best screwed-up zipper explanations from
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Replying to @vgr @gravity_levity
Every little helpspic.twitter.com/HWGi3gFIDC
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yeah time travel book is great too
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