This is fantastic. I recently regained an interest in revisiting Feynman lectures but several audios I found on YouTube left me uneasy that they could be AI-generated. I aimed to ensure good sources before diving in again, but hadn’t yet had the opportunity to do so.

The videos are particularly interesting in how they include a transcript which is auto-highlighted and one can click around the text to move in the video. That’s a great mode of interaction I wish were more common. I have only found it in Apple’s WWDC videos.

It’s missing a way to link directly to a timestamp, and when switching videos from the tabs the URL doesn’t change, but those are minor inconveniences considering the rest of the website.

Also kudos on choice of using the structure of the atom image as the “loading” graphic.

Thank you to the authors for putting this together.