I just inherited a Python repo where every hundred lines or so, they added a ^L. What is a ^L? you ask. And I say that’s an excellent question. You see, a ^L is an ASCII standard for saying that if you print the plain text, you should split the content onto a new page here. That’s right, for years, a team of people strictly enforced that they consistently add ^Ls everywhere in case someone wanted to print the entire fucking repo onto paper.
It’s an invisible character, it took me quite a while to figure out what it even was.
I once watched a 20 minute video on how in order to compute trajectories for the rocket launcher in the original doom, they did some of the most advanced math I have seen in any context to avoid doing any division which is computationally expensive. How the mightly have fallen.