This introduced me to Erlang, not much later I found myself watching all Joe Armstrong videos I could find and read his thesis [0]. It is so well written and unique in it's retrospective.
Joe could explain the basic ideas and where they came from so concise and humble [1], you can probably just binge watch this whole list, one other gem being "The forgotten ideas in computer science" [2]...
[0] https://youtu.be/bo5WL5IQAd0 [1] https://youtu.be/i9Kf12NMPWE [2] https://youtu.be/-I_jE0l7sYQ?list=PLvL2NEhYV4ZsIjT55t-kxylCU...