It can be undone though, right? https://en.wikipedia.org/wiki/Quantum_eraser_exp... | Hacker News

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FeepingCreature on Oct 7, 2017 | parent | context | favorite | on: Proton-size puzzle deepens

It can be undone though, right? https://en.wikipedia.org/wiki/Quantum_eraser_experiment

Or do you mean that the point where it can no longer be undone in principle can be considered as a cutoff for "collapse"?

Koshkin on Oct 7, 2017 [–]

Irreversibility is essential in creation of information, i.e measurement.

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