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Feynman’s Three-Step Scientific Method: Guess, Compute, Compare, Validate with Nature

Summary

Richard Feynman’s insightful lecture outlines the fundamental process of discovering new scientific laws, emphasizing a rigorous, experiment-driven approach. He introduces a three-step method: first, one guesses a new law; second, one computes the consequences that would logically follow if this guess were correct; and third, one compares these computed consequences with nature to validate or refute the hypothesis.

  • Guess: Propose a hypothesis based on existing knowledge.
  • Compute: Derive predictions from your hypothesis using mathematical models or logical deductions.
  • Compare/Validate: Experimentally test if reality matches the predicted outcomes. Refine or discard hypothesis accordingly.

2026 04 12 Feynmans Three Step Scientific Method Guess Compute Compare Validate w

Source Notes

  • 2026-04-12: Feynman on Scientific Method.