I think their core innovation is that you don't pick what to watch, and they see how long you watch it instead of if you actively "like" it. So with both "selec

I think their core innovation is that you don't pick what to watch, and they see how long you watch it instead of if you actively "like" it. So with both "selecting" AND "liking" out of your active control, the algorithm can see what you ACTUALLY like.