I mean, you're arguing a term that's used in physics isn't physical. Raycasting is often used when solving EM equations. Are you purporting that photon streams

I mean, you're arguing a term that's used in physics isn't physical. Raycasting is often used when solving EM equations. Are you purporting that photon streams don't follow a ray? And when they interact with a surface they don't obey Snells law? And when you look at the interface between mediums a percentage of the intensity is transmitted and the remainder is reflected (the ratio of which is determined by the angle of incidence?)