I know a two-and-a-half hour video is a hard sell for most people, but I found this talk to be absolutely fascinating. It's not yet another tired “let's all shit on OOP just for the sake of it”-type thing—instead, it's basically nothing but solid historical information (presented with evidence!) as to how “OOP”, as we now know it, came to be. The specific context in which these various decisions were made is something that nobody ever cares to teach, such that it's basically long-since forgotten today—yet here it is, in an easily-digestible format!