YouTube's algorithm thinks it knows what you want. This does not pretend to.
Pick a mode. 30 second samples. Only videos under 1000 views from channels under 1000 subs.
Never the same video twice except when you say so.
Topic
You type something specific. It searches.
Local
Uses your phone's location. Obscure stuff filmed near you.
Roulette
Random spot on Earth. You go where the dice say.
Playlists
Replay everything you tagged with a label. Shuffled, looped.