Particles at two places at the same time—superposition. Particles communicating instantly with no respect to distance—entanglement. How to make sense of such weirdness? Quantum mechanics is how the world works at deepest levels. But nobody has any idea why.

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Freeman John Dyson is a British-born American theoretical physicist and mathematician, famous for his work in quantum electrodynamics, solid-state physics, astronomy and nuclear engineering.

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