A team of scientists in China recently used what’s essentially the quantum physics version of stage magic to demonstrate just how brittle our concept of reality is. Abracadabra, you don’t really exist. Up front: The big idea in play here is called “quantum advantage.” Typically we hear about this in the world of quantum computing. There, quantum advantage is the hypothetical point at which a quantum computer can outperform any existing classical computer at a given task. Outside of quantum computing, quantum advantage is used to describe a situation where the exploitation of quantum mechanics allows a person or system…
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