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Note that they almost immediately contract from 'the universe' to 'the visible universe', which isn't the same thing at all.
by philipwhiuk 8mo ago
Note that they almost immediately contract from 'the universe' to 'the visible universe', which isn't the same thing at all.
- mr_mitm 8mo agoIt's observable universe, and that's the only thing that matters. Events outside the observable universe are causally disconnected. We will never interact with anything outside the observable universe. For all practical purposes, it's the same thing.