
What is a light cone?
Daniel and Kelly’s Extraordinary Universe
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The Absolute Wherever You Can't Affect, You Cant Influence, Right?
The universe can be divided into three regions. The absolute elsewhere is the spot that you can't affect, you can't influence. It also affects what we might agree on as a consistent history of the universe. If these two things are not inside each other's light cones, then they can be differently ordered and not affect anything from a causality point of view.
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