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PBS Space Time
The Geometry of Causality
Season 3
Episode 12
Using geometry we can not only understand, but visualize how causality dictates the order of events in our universe.
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14:01
How do you learn the age of the universe when there’s no trace left of its beginnings?
13:31
Recently we discovered that its violent past was much more recent than we thought.
13:38
How can we be sure about timescales so far beyond the capacity for human intuition?
12:49
If there’s one thing cooler than a black hole it’s a rotating black hole.
14:42
How do quantum states manifest in the classical world?
11:31
If the quantum multiverse is real there may be a version of you that lives forever.
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.
12:22
If the universe goes on forever, does that mean there are infinite versions of you?