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• Physicists say that at a microscopic level things take on definite properties only when measured. Does the everyday worl
• Quantum states are fragile — the slightest heat or noise destroys them. To protect something fragile, whether a system o
• When quantum noise started ruining ordinary microchips, Feynman proposed using that same noise as the engine of a new ki
• Calculating the interactions of a few hundred particles would need more numbers than there are atoms in the universe. Do
• In physics, erasing information always costs energy and releases heat. In life, is letting go of the past harder than le