I still like to constrain line length, because having two source files (or a source file and a REPL) side-by-side on the same monitor is so useful. The trade-of

I still like to constrain line length, because having two source files (or a source file and a REPL) side-by-side on the same monitor is so useful. The trade-off of avoiding long lines is a small price to pay. I recognize that most people like to have one file per monitor though.