Terrific presentation. But I have a comment: His dismissal of the argument Knuth makes regarding the hot loops could have been explored a bit better. I found it weird he didn’t mention the difference of types of programs of then vs now. Even today, in scientific code it is still absolutely the case a lot of the time that a huge chunk of the runtime comes from a single very very hot loop. It might be hidden in a libra…
iirc, in the talk casey in fact does goes on about how he tried to find examples, but couldn't. in the q&a, he was also asked about this further.