Wait... what? Dude, the invention of the arch was a big deal, and it came later. Forgive the Egyptians for their inability to do calculus; they were still thinking of shapes in terms of knotted rope.

The great irony of this conversation and its genesis is that it comes from the author of a server-side programming platform who's good points include, "No new techniques required, you already know javascript" and that touts a decades-old cooperative-multitasking approach as "simple" when the end result for the programmer is anything but.