The parinfer argument is funny. It's quite literally an argument for syntactically significant whitespace. With parinfer you can just remove the parenthesis in

The parinfer argument is funny. It's quite literally an argument for syntactically significant whitespace. With parinfer you can just remove the parenthesis in most cases! Or rather, parinfer will infer them. So.. if a computer can infer them always... why do you have them?