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2020-10-20: Is The Future Predetermined By Quantum Mechanics?

  • 06:34: A fast moving observer defines the present very differently to you.

2020-10-13: Do the Past and Future Exist?

  • 08:14: The upshot is that the moving observer builds an entirely different map of that time slice - they define the present differently.

2017-02-02: The Geometry of Causality

  • 02:00: ... time measured by a moving observer on their own clock is called proper time, but counting those clock ticks ...
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