The Uncertainty Principle (con’t)

• Heisenberg (in the context of this experiment)

  • It is impossible to design an apparatus to determine which hole the electron passes through, that will not at the same time disturb the electron enough to destroy the interference pattern

• The uncertainty principle protects quantum mechanics

  • The uncertainty principle is a postulate
    • If we ever find a way around it...
    • then quantum mechanics will collapse

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