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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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15:09
Does conscious observation of a quantum system cause the wavefunction to collapse?

13:17
There is an idea that consciousness can directly influence quantum systems.

12:09
The axion may explain dark matter.

12:22
If the universe goes on forever, does that mean there are infinite versions of you?

13:34
An insight by a young scientist in 1925 allowed us a better understanding of space time.

13:35
The three body problem is famous for being impossible to solve.

12:02
How about black holes being captured by the screaming vortex of a quasar?

9:54
Why is there something rather than nothing?

12:24
Do black holes create new universes?

12:50
A simple statistical argument tells us that the doom of our species is much, much closer.

12:25
Our universe may actually be finite in size.

13:36
How do you correctly use the anthropic principle?