[zevv]

If any AI - or any other process or algorithm - would be able to provide significant better predictions than what is currently used, wouldn't this affect the stock prices as soon as this gets deployed by brokers at scale, effectively making the predictions useless again?

[andreygrehov]

Check out Renaissance Technologies founded by Jim Simons [1]. They've been doing that for years.

[1] - https://en.wikipedia.org/wiki/Jim_Simons_(mathematician)