It is kinda funny that some world-renowed people who invented genius algorithms like quicksort and graph shortest-path were mulling over "hey would be nice if we kept related data together in a struct" and some people were raging over it saying "why you want to change how I work?"

Casey points out that many of the lessons they came to were so obvious that it just became how it is done that no one even remembers it was done in any other way. In the talk the laments it makes it really hard to track down who originally came up with these ideas.