No sarcasm intended here: Does it matter in terms of social utility whether these types of predictive models are making predictions of human decisions to buy or sell a stock versus predictions of AI based decisions to buy or sell a stock?
In practice given that hedge funds tend to be secretive anyway maybe it makes very little difference.
Why they make their decisions is another question.
[1]: https://www.bloomberg.com/gadfly/articles/2016-09-14/herbali...