I’ve heard about this idea a lot, but on the flip side it doesn’t seem to make sense. Us as 3D beings can’t naturally encounter 2D things, just representations of them (drawings etc), but nothing in the real world that has just 2 dimensions. So how could it be possible for there to be 4 (or more) dimensions?
In: 3
Imagine if in order for things to touch, they had to be the same colour, and you could change things’ colour with three different rays (a red/antired ray, a green/antigreen ray, a blue/antiblue ray). There we go: three extra space dimensions. If the colour categories were actually pretty broad, that would be an extra dimension *of small size*.
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