It's a video talking about and showcasing some "strange loops" (an idea coined by Douglas Hofstadter in his book "Gödel, Escher, Bach").

Probably most interesting to the people here is the quine relay: https://github.com/mame/quine-relay ("a Ruby program that generates a Rust program that generates a Scala program that generates ...(through 128 languages in total)... a REXX program that generates the original Ruby code again")

Also around 6:50 he shows a nice little easter egg in the quine of a RubyConf talk by Yusuke Endoh (mame). The talk is also full of really nice examples: https://www.youtube.com/watch?v=VDk---TgCv4