These videos are referring to comments and questions found here:
https://www.youtube.com/watch?v=y3v7pfNG5JQ
https://www.youtube.com/watch?v=qK5aQdNke4s
Zennist’s articles are here:
http://zennist.typepad.com/zenfiles/2016/09/observing-the-observer.html
http://zennist.typepad.com/zenfiles/2016/09/scraping-off-the-dried-mud.html