We humans may still be licking our wounds following A.I.’s victory at the ancient game of Go, but it turns out we still have something to be proud of: We’re doing a lot better than machines are at solving some of the key problems of quantum computing.

Quantum mechanics are notoriously mind-bending because so-called “qubits” — the atomic-scale building blocks of quantum computers — can inhabit more than one physical state at once. That’s known as superposition, and it’s what gives the prospect of quantum computers their exciting potential.

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