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Accuracy Quote by John Archibald Wheeler

“Every heat engineer knows he can design his heat engine reliably and accurately on the foundation of the second law [of thermodynamics]. Run alongside one of the molecules, however, and ask it what it thinks of the second law. It will laugh at us. It never heard of the second law. It does what it…” quote by John Archibald Wheeler
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“Every heat engineer knows he can design his heat engine reliably and accurately on the foundation of the second law [of thermodynamics]. Run alongside one of the molecules, however, and ask it what it thinks of the second law. It will laugh at us. It never heard of the second law. It does what it wants. All the same, a collection of billions upon billions of such molecules obeys the second law with all the accuracy one could want”

John Archibald Wheeler

About This Quote

Source Lecture: Thermodynamics Seminar, 1975, MIT

Molecules act independently of physical laws, yet their collective behavior follows the second law precisely.

In simple terms: Individual parts ignore rules, groups obey them.

Key Takeaway

Consider emergent order from random actions.

Themes

physics thermodynamics emergence

Mood

inquisitive thought‑provoking

Type

scientific philosophical

When to use this quote

  • nanotechnology
  • materials science
  • energy systems

Key Concepts

second law statistical mechanics

Questions to Reflect On

  • What does this imply for designing micro‑machines?
  • How reliable is emergent behavior?
A Different Perspective

Statistical laws may break down at extreme scales.

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