Imagine a world where you can only move forwards and backwards along a line. You’d see nothing but single points in front of you, and nothing but single points behind you—a one-dimensional world. Now ...
So theory crafting as per Einstein imagining what it's like riding on a beam of light. If space-time expands in 5 dimensions, then the light speed barrier becomes emergent. Ie Space expands (in a 5th ...
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