Typically, I despise the use of "emergence" as an explanation. Â It's usually just a hand-wavey excuse for not knowing whats going on.
In this case…I've got to think about it some more.
The experiment involves the creation of a toy universe consisting of a pair of entangled photons and an observer that can measure their state in one of two ways. In the first, the observer measures the evolution of the system by becoming entangled with it. In the second, a god-like observer measures the evolution against an external clock which is entirely independent of the toy universe.
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Quantum Experiment Shows How Time ‘Emerges’ from Entanglement
When the new ideas of quantum mechanics spread through science like wildfire in the first half of the 20th century, one …
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