Have you seen DeepMark... https://news.ycombinator.com/item?id=49288896 ?
Looks well done - people may bookmark vids and want to use all their YT bookmarks as a source for the sauce. Get all the reading done in one shot.
Lastly, could a bookmarklet prompt an AI to summarize a video by pre-filling a prompt? I suppose that's what is being done here, but via hover windows.
The comment sentiment analysis could be great value, I'll experiment with this. Thank you for the idea.
As for your last point, yes, the current workflow does summarize it. Are you saying something like an open ended prompt box where I can say something like "Give me the scoop on what Alex Hormozi's last 10 video"?
Yes. Ideally that box would be in a sidebar. On that note: Gemini Chat Sidebar, Sidebar with Gemini and the official Gemini in Chrome all come to mind, for example.
Also, have you seen these: https://greasyfork.org/en/scripts/by-site/youtube.com?site=y...
Seems like a crowded space, that could be a good thing if you differentiate well.