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PBS Space Time
The Edge of an Infinite Universe
Season 5
Episode 17
Have you ever asked “what is beyond the edge of the universe?” And have you ever been told that an infinite universe that has no edge? You were told wrong. In a sense. We can define a boundary to an infinite universe, at least mathematically. And it turns out that boundary may be as real or even more real than the universe it contains.
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13:29
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14:48
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13:51
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17:26
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13:46
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12:47
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14:21
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Cosmic strings could be the most most bizarre undiscovered entities to actually exist.
13:31
We explore Objective Collapse Theories in a down to earth objective way.