What I remember about much of that code I looked at in DS classes way back in the 80's was that, due to very limited memory space, all the variables were like I,J,K and X,Y,Z.

You have no idea how much more difficult that made it to follow sorts and tree algorithms. Thankfully, I seemed to have some sort of coding gift that allowed me to write the damn things at the terminal and make them work.

I got A's in all my CS classes, but now I guess I am so used to the magics of PHP object handling I've literally stopped caring about that shit.

It's hard to see why I would want to again.