Zac Slade

your "clean" C++ is slower than this "ugly" C

There’s a famous Usenet story about a programmer (Mel) who refused higher level abstractions. It was the late 1950s, and even in that era, Mel was…well today we’d call him a boomer. Mel only wrote in raw hexadecimal. He didn’t approve of compilers, and refused to use optimizing assemblers. "You never know where it's going to put things”, he said. Everyone else in the company was moving on to FORTRAN, and they didn’t understand why Mel was so stubborn about using new tools. He *loved* self-modifying code. “If a program can’t rewrite its own code”, he asked, “what good is it?” Mel eventually left the company, and other engineers were tasked with understanding what was left. Mel’s hand-optimized routines always beat the assemblers; but some of it looked absolutely bizarre. One engineer took ~2 weeks to understand why there were loops with no exit condition…yet the program worked fine. I won’t spoil all the details, you should really read it, it’s short. But it’s a fantastic piece on “what defines a real programmer?”…which is becoming increasingly relevant in this vibe-coded era. I strive to understand computers as deeply as Mel! If we aren’t careful, we’re going to lose the “Mels” of this world to time. That’s part of why I go so deep in my youtube videos. I hope that younger viewers are genuinely fascinated by the inner workings of our machines, instead of handing everything off to higher abstractions.

the whole "cannot use our models to develop a competing product" is getting really confusing now that model labs are launching regular products like Claude Design

Morning bathrobe rant: Rule files.