These videos are available on YouTube (I made a playlist), but I’ve embedded them on these pages so that I can add some additional comments about them.
(I tried leaving comments on the YouTube videos themselves, where they could be useful to everyone who sees the videos, but for some reason the channel owner (stanfordonline) entirely disabled comments on some videos (so my comments were lost), and on other videos my comments can be seen only if you choose “Newest first”, which no one ever does.)
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