I'm not simply saying that discovery is out of scope, but that it's an actively harmful feature. The computer has no good metric to judge what is shown to you. I think the old ways are much better, that is you hear about something if a human decides to share it with you. This process seems impossible to automate and the effects of trying have been very detrimental.

That said, the web has already developed a solution to this issue. It's basically just indexing. It's a very valuable technology, hence why Google got so much money from doing it.