What are the Forces that keep the Laws of Physics in Place?

Question

I know this may sound weird or confusing to some, but what keeps the Laws of Physics consistent?

For example:
A light beam striking a flat surface is reflected off that surface at the same degree angle that it strikes the surface. What keeps that light beam in this definite path?

Similarly, one could use the analogy of a train on a track. The train follows the track exactly, it can not move anywhere outside of this track. So we know it is the track that keeps the train on its path.

Well, what keeps the light beam on its exact path? Must there not be some type of force that locks the light beam in its track?

Answer 1

chuck norris

Answer 2

Nope, there is no "force" that keeps the light on its track. That's just the same light and space is.

Think of it this way: if there was a force, you would be asking what keeps that force on its track.

Physicists try to find how nature operates, and express that in the simplest way they can. Things should be made as simple as possible — but no simpler. Sometimes, that means you just have to say "that's the way things are".