> Yet you have to know both versions of them all, and be able to recognize and understand both kinds when reading other people's code.
You have to be able to understand that if it's a two character variable of all punctuation you may need to look it up to figure out what it is. Typing `!perldoc $"` into duck duck go sent me to https://perldoc.pl/variables/$%22 ... which is roughly equivalent to `!g [docker error]` which I already do all day long.