But "being simple from the outset" is exactly what Casey is advocating here. Start with the simple code, that he ends up with, rather than optimizing for a "Cle

But "being simple from the outset" is exactly what Casey is advocating here. Start with the simple code, that he ends up with, rather than optimizing for a "Cleanliness" metric. His final code is definitely simpler than the alternative, which would probably involve several files in another environment. Sure, he does reach for a benchmark, but that's merely to demonstrate the end result.