Principle of least action
Paul M Sutter: The Most Important Idea in Physics: The Principle of Least Action – Ask a Spaceman! at https://www.youtube.com/watch?v=UuqpCBZoX3M You say mostly the right words, but mathematics is powerful when you share the equations and methods and diagrams and geometry. Physics and engineering are powerful when you share the diagrams, equations, data and real examples.
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