I like to think of the original code as the first approximation to correct. You can always get closer to correct, but if you ever actually reach it, the universe will hit a breakpoint, and the daemons will halt their processes, grab you, and drag you and your code-that-mankind-was-not-meant-to-know off to coder heaven.

Coder heaven is nice. It has free juice, catered lunches, and foos-pong tables. Individual offices, with plenty of collaboration-friendly huddle rooms. You're only on call 1 eon out of every 4. Unfortunately, the universe is one giant CRUD app.

Probably better off not writing perfect code.