But Carmack didn't finish college. He's using what he has. This tweet is him defending his math ignorance in a particular case. I consider him a better progra

But Carmack didn't finish college. He's using what he has. This tweet is him defending his math ignorance in a particular case. I consider him a better programmer than me, and he is honest about his shortcomings (like in this tweet), but I am often very surprised about what things he says he just learned - things any CS undergrad would know. It's kind of like stories of programmers who were allowed to feed punchcards to the mainframe once a week - it's amazing what they accomplished with that limitation, but one thinks how much more productive they would have been with a more robust interaction.