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It is the most precisely tested theory in science, and it still will not tell us what it means. What quantum mechanics says, the experiments that forced it on physicists,…
Quantum theory has two rules for how states change and no agreed account of when the second one applies. A century on, experiments are finally narrowing the options.
Schrödinger's cat is the most famous image in quantum physics, and it is almost always told backwards. In 1935 Erwin Schrödinger did not claim a cat could be alive and…
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