Snell Memes

Light doesn't need GPS—it's just naturally efficient at finding shortcuts. Fermat's Principle says light takes the quickest path between points, while Snell's Law gives us the math for how light bends when crossing materials. Both equations are saying the same thing: light is basically that friend who always knows the fastest route home after a night out. Physics doesn't care if you call it refraction or time optimization—light's just doing what light does best: getting from A to B while breaking speed limits and bending rules.