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Q&A What is the lower bound for lightspeed?

I am investigating the possibility of modifying the speed of light in my world. Assuming that the speed of light in a vacuum can (and in my world, is) modified, what lower bound exists that would ...

5 answers  ·  posted 5y ago by Soan‭  ·  last activity 5y ago by Soan‭

Question reality-check physics