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Future Quote by Richard P. Feynman

“If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly.” quote by Richard P. Feynman
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“If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly.”

Richard P. Feynman

About This Quote

Source Lecture: The Character of Physical Law, Richard Feynman, 1965

Quantum systems only give probabilities for events, not exact timings, so photon emission is fundamentally unpredictable.

In simple terms: Quantum events are probabilistic, not deterministic.

Key Takeaway

Accept uncertainty in quantum predictions.

Themes

physics uncertainty probability quantum mechanics philosophy of science

Mood

curious analytical inquisitive

Type

scientific philosophical

When to use this quote

  • research labs
  • particle physics
  • technology development
  • education
  • philosophical debate

Key Concepts

wavefunction amplitude measurement problem randomness

Questions to Reflect On

  • How does embracing uncertainty affect scientific progress?
  • What practical steps can we take when outcomes are only probabilistic?
A Different Perspective

Probabilistic predictions still guide practical applications despite inherent randomness.

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