Nope, not theory. It is mathematics. Obviously, you don't realize they are different. Theories cannot be proven. Math can be proven.
You're trying to claim you can beat the game by cashing out at a particular time. The game is essentially a sequence of events added together. You are claiming you can change your results to do better than the mathematical computations show, hence, you are claiming the same thing as 2+2+2+2 = 10.