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Continue to ChatTime and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions. - Stephen Hawking from https://whatsmyquote.com/quote/time-and-space-are-finite-in-extent-but-they-don-t-have-any-boundary-or-edge-they-would-be-like-the-surface-of