[huijzer]

Makes sense. Renaissance Technologies used machine learning to get an annual return of around 60% for multiple years even when they had large piles of money already. They already showed that machine learning can predict the future.

[pizza]

I got the impression from somewhere that they used the simplest machine learning techniques (just fitting regressions to data), but that it was "the 'what' that they decided to fit" that was the secret sauce.