Gravity, evolution and the like are "mere theories" in exactly the same way that a revolutionary new medical breakthrough might be "merely" a cure for cancer, or that the world's top athletes are "merely" Olympic gold medalists. The fact that "a lot of applications are built on" them is a pretty big clue that they work and that they are, indeed, fact. Thus, from any perspective, what you presented is purely interpretation based on and calculated to confirm a holy book.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
