An important aspect of randomness is that probability distributions are observable. Randomness doesn't imply a universe of nothing but white noise; it means tha

An important aspect of randomness is that probability distributions are observable. Randomness doesn't imply a universe of nothing but white noise; it means that we can't make predictions about a random process beyond knowing the probability distribution. But it turns out that knowing something about probability distributions counts for a lot. Card counting is a mundane example.