There is literally nothing inside a proton, because protons don’t exist. You were born inside a holographic movie that someone else wrote… just like the Truman Show. Our “science” and our “experiments” are also part of that movie. Everything is scripted, and to quote The Beatles, “…nothing is real.” Take a good hard look at the “delayed choice double slit experiment,” it pretty well says it all. However, you can also examine Libet’s experiments on free will. Or, the ideas of information that is contained within black holes. Also, you can read about the Plato’s cave allegory. The really strange thing, however, is that far from being simple, our reality is even more complex than we can ever imagine. Existence is beyond description. High energy physics is an exercise in movie making.