Richard Hamming’s Lectures are amazingly inspirational to the point that Sam Altman and Paul Graham written posts on one of them called You And Your Research. While You can play them via a Youtube playlist, you can save some bandwidth in exchange for recording quality by using high compression of Speex codec. You can find “Spxfy” script here and similar things in that repo.. I like to compress videos to be able to archive in Syncthing and to save mobile bandwidth. In particular, I recommend “You and Your Research” lecture.