Photons follow the quickest path

This explains how the path of a photon between two points can be predicted using the principle of least action and Fermat's Principle.

[@zachbarker497]

Light is lazy would have been a banger name for this video

[@Teachwelles]

I should have thought of that!

[@benhunt2023]

Inspiring

[@Teachwelles]

Glad to find out!!! Thanks so much for sharing!