>>12124014True, but there is such a thing as a random sequence of numbers, as well as a random mechanism for selecting a number. Randomness can be defined mathematically by formalizing the procedure of selecting a number x from a larger set of numbers X. The literature on quantifying randomness is quite sizeable, so don't get discouraged if it feels like a lot to wrap your mind around. Our brains are incredibly efficient Bayesian inference engines, wonderful at picking up patterns, even ones that aren't there as is the case with random sequences of events. Don't give up.