Quantum probability can’t be derived without assuming it first

October 20, 2026 · 3:50 pm 1 sources

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• Quantum probability can't be derived without assuming it first
  Phys.org · October 20, 2026 15:50
  For nearly a century, physicists have relied on the Born rule to calculate the chances of different outcomes when they measure a quantum system. Yet despite decades of effort, nobody has managed to derive the rule from more basic mathematical principles without making assumptions about probability…