But simple human behavior can often be modeled by a simplified mathematical model :)

My two favorite quotes on the subject are of course George Box:

> all models are wrong, but some are useful

And Avery Pennarun:

> almost everything produced by ML could have been produced, more cheaply, using a very dumb heuristic you coded up by hand, because mostly the ML is trained by feeding it examples of what humans did while following a very dumb heuristic.