Consider: nothing that we know of in this Universe is 2 dimensional. A square is two dimensional. It cannot exist in this Universe. A square does not exist.
That doesn’t mean it’s not useful, but it’s a useful fiction
Consider: nothing that we know of in this Universe is 2 dimensional. A square is two dimensional. It cannot exist in this Universe. A square does not exist.
That doesn’t mean it’s not useful, but it’s a useful fiction