> unlikely to guide you into learning about quantum mechanics True, but that depends on assuming the person teaching is really only interested/aware of an answ

> unlikely to guide you into learning about quantum mechanics True, but that depends on assuming the person teaching is really only interested/aware of an answer that deals with refraction, and that the median mental model most people have isn't close to understanding the mechanics of refraction. I've noticed that the levels of abstractions we employ are all affected by these sorts of questions, perhaps the same question a year later would afford one the chance to unravel a particular layer assuming the layers above it are sufficiently saturated in understanding :D