I'm a great believer in visual distinctions.
If you and I always agree, then one of us is redundant.
I talked about becoming stupid, but I've always been stupid. Fortunately I've been just smart enough to realize that I'm stupid.
Wow, I'm being shot at from both sides. That means I *must* be right.
That being said, I think we should immediately deprecate any string concatenation that combines '19' with '99'.
Take Lisp, you know its the most beautiful language in the world -- at least up until Haskell came along.