I’ve seen the difference between what YouTube presents to me when I’m logged in v.s. when I’m on a clean computer it can’t associate with me, and I do value the personalisation — when not logged in it shows me a hundred duds for every one thing I care about, and logged in it’s about 50:50.

How much of this improvement is a mysterious machine learning algorithm and how much is it just looking for new things from my subscription list, I’m not sure, and that’s important: being trapped in a torrent of self-reinforcing falsehoods is something I fell for in my teenage-goth-New-Age phase, which Carl Sagen condemned in The Demon-Haunted World, and which people in general have been falling for with every sychophant and propagandist from soothsayers to tabloids telling them what they want to be so.