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PBS Space Time
Our Antimatter, Mirrored, Time-Reversed Universe
Season 5
Episode 8
The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in charge, handedness, and the direction of time. But one by one these symmetries were found to be broken, threatening to break all of physics along with them.
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