Idiots in science: A quantum experiment suggests there’s no such thing as objective reality

Physicists have long suspected that quantum mechanics allows two observers to experience different, conflicting realities. Now they’ve performed the first experiment that proves it.

Idiots in science: A quantum experiment suggests there’s no such thing as objective reality Arxivquantumrealities-12

Idiots in science: A quantum experiment suggests there’s no such thing as objective reality Arxivquantumrealities-12

Back in 1961, the Nobel Prize–winning physicist Eugene Wigner outlined a thought experiment that demonstrated one of the lesser-known paradoxes of quantum mechanics. The experiment shows how the strange nature of the universe allows two observers—say, Wigner and Wigner’s friend—to experience different realities.

Since then, physicists have used the “Wigner’s Friend” thought experiment to explore the nature of measurement and to argue over whether objective facts can exist. That’s important because scientists carry out experiments to establish objective facts. But if they experience different realities, the argument goes, how can they agree on what these facts might be?

That’s provided some entertaining fodder for after-dinner conversation, but Wigner’s thought experiment has never been more than that—just a thought experiment.

https://www.technologyreview.com/2019/03/12/136684/a-quantum-experiment-suggests-theres-no-such-thing-as-objective-reality/

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Idiots in science: A quantum experiment suggests there’s no such thing as objective reality

Idiots in science: A quantum experiment suggests there’s no such thing as objective reality

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