I like a different analogy. In old times the oracles and shamans danced in masks wielding amulets of power and magical weapons. Modern day shamans dance with da

I like a different analogy. In old times the oracles and shamans danced in masks wielding amulets of power and magical weapons. Modern day shamans dance with datasets and clusters, but the main principle is the same. If my performance produced a desired effect (correlation does not imply causation), that is, obviously, due to my undoubted magic powers. If it fail, which is usually the case, that is because the data was not big enough and there was not enough money given to perform big-enough sacrifice to please the gods. We actually might learn a lot from Tibetan tantric practitioners. It seems that Wall street guys and economists did.