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Q&A What happens at the interface between two universes with opposite thermodynamic arrows of time?

I saw this old closed question on Physics.SE and thought it would be perfect for here. The original author is long gone, so I thought I'll just have to post it myself. We can consider factors of p...

5 answers  ·  posted 8y ago by JDługosz‭  ·  last activity 7y ago by JDługosz‭

Question travel physics time-travel time