alt Hacker NewsI find it amazing how close the front page of this is to what I actually watch/want to watch on YouTube. I guess I shouldn't be surprised, but it feels like an unpersonalised feed (besides being based on Hacker News) shouldn't have a significantly better hitrate for me than YouTube's "personalised" feed.
I am not sure the personalize algorithm is based on what you want to watch, but what will keep you watching. That’s a measurable KPI.