It's the how many sides of a coin question. There is only a right answer in the context, dimension and design of said coin. Two? 3? 5? 1?

Feb 19, 2017 · 7:18 AM UTC

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Replying to @mholzschlag
Still just a three dimensional object. 1D would be invisible. Humans do not create 5D objects. How many can visualize 5D?
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Fair enough. I tend to lean toward theoretical physics.
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