Since podcasts and entertainment shows are getting longer and longer, youtube has implemented a way to know the subject of the talk in each part of the video.

Since podcasts and entertainment shows are getting longer and longer, youtube has implemented a way to know the subject of the talk in each part of the video. But I find it kinda hard to hover over every one of them in the youtube video bar or read them from the description. So I thought I could make an extension for chrome that's basically a sidebar with all the keypoints from the video, you can easily click them and get to that part of the video. Since it's just a 2 hour project I would like to first get an opinion on it, so I will attach a video in the url. Do you think it's useful? Should I continue working on it?