[idyllei]

I imagine it would be possible (though difficult) to autoplay videos which are related to each other and gradually converge to something that would interest the viewer.

For example, Russian dash cams to Russia at night to the Russian sleep experiment creepypasta, to horror games to video games in general, if that is what the user tends to watch.

I know this has graph theory written all over it and the shortest-distance problem has wreaked havoc for centuries, but I think with enough resources Google/YouTube could find a good compromise in this situation.