No autocomplete is a major pain in the ass when you use different languages and forget if it's "#list", "len(list)","list.len()", "list.length()", "list.size()" or "list.length".
Also, grug hit dot on keyboard and list of things grug can do pop up magic
Exackery. I seriously struggle when I'm using vim or nano on a remote box because they don't have autocomplete and I have to duckgo the syntax for bash. Bob help us all if I have to work in C++ like that with the 200 million variations on collection.add(). {eugh dunno}
Also, grug hit dot on keyboard and list of things grug can do pop up magic