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Before the discovery of quantum mechanics, the framework of physics was this: If you tell me how things are now, I can then use the laws of physics to calculate, and hence predict, how things will be later.
Brian Greene
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Interpretation

What this quote means

The quote reflects the predictive nature of classical physics before quantum mechanics introduced uncertainty.

Brian Greene emphasizes the revolutionary shift brought about by quantum mechanics in the field of physics. Prior to its discovery, the study of physics was based on deterministic principles that allowed for accurate predictions of future states based on current knowledge. Quantum mechanics, however, introduces inherent uncertainty and randomness, challenging the classical notions of predictability in physical systems.

Themes

Quantum MechanicsPredictabilityDeterminismPhysicsUncertainty

In practice

Example use cases

This quote can be used in a lecture about the evolution of physics.

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