Is ACTION The Most Fundamental Property in Physics?

The video explores the evolution of minimizing principles in physics, starting with Heron of Alexandria's principle of least distance and Fermat's principle of least time. It discusses Newton's laws and LaGrange's principle of least action, which simplifies complex systems by focusing on energy rather than vectors. Hamilton's correction leads to Lagrangian mechanics, which applies to both classical and modern physics, including general relativity and quantum mechanics. The video concludes with Feynman's path integral formulation, showing how these principles unify various physics theories.

What is the significance of proper time in the context of action?

Describe the double slit experiment and its implications for quantum mechanics.

What did Richard Feynman contribute to the understanding of quantum action?

How does configuration space relate to the principle of least action?