Light Doesn’t Choose the Shortest Path… It Chooses the Fastest! When light passes from one medium to another—like from air to water—it bends. This phenomenon is called refraction 🌊💡. But here’s the detail few people know: light doesn’t follow the shortest path, it follows the path that takes the least time ⏳. This principle was described by Pierre de Fermat in the 17th century and shows how even nature seems to “think” in terms of efficiency. This invisible rule is described by Snell’s Law (1621), which relates the angles of incidence and refraction to the speed of light in each material. In other words: every deviation it makes is the universe’s perfect math in action 📐✨. At its core, refraction is more than physics: it’s natural poetry. Light dances between mediums and proves that nature always seeks the most elegant balance possible. 🔮 If even light finds the fastest route, couldn’t you also adjust your path to go farther?