Good question. It is a cat and mouse game but certainly possible for YouTube to (at least) only release part Y of the video after a certain amount of time has e

Good question. It is a cat and mouse game but certainly possible for YouTube to (at least) only release part Y of the video after a certain amount of time has elapsed since part X was released. And if YouTube really wanted to seamlessly glue the ads and video together, I think it would be insurmountable from an adblocker's perspective.