A discussion on Twitter got me thinking. Unfortunately, the discussion mainly was me being pedantic about the terms deterministic and predictable (but I was right so that almost makes it ok…). Anyway, it got me thinking, is there such a thing as a true indeterministic system? A system we cannot predict because its next state does not follow from its current state and its history. A random system… Contrary to many computational and generative systems nature doesn’t have a random() function. But we often introduce it to mimick the noise that is inevitably present in any real system, the tiny unknown disturbances, the myriad of tiny