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2022-03-23: Where Is The Center of The Universe?
- 08:48: No matter the geometry of our FLRW universe, all geodesics converge to a single point in the past, and end there.
- 12:19: ... observe an expanding or contracting universe that looks exactly like a FLRW universe. ...
- 13:04: So you can find a Lemaître-Tolman universe inside a greater FLRW universe.
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