If we had an extension to skip all the filler garbage in YT videos, I would be ecstatic. Maybe that's doable now? YT captions -> identify fluff timestamps via a browser LLM -> insert segments onto the video timeline, which automatically skip, a la SponsorBlock.

We could slash through Youtubers repeating themselves, making hack jokes, narrating their video title & outline, vapid explanations of common knowledge, etc. Any of which can be customized to your taste via a system prompt!

This kinda semantic filter would actually be an immensely powerful UI tool for all webpages and media, now that I think about it...