That tab thing gives me an idea. If I ever make a language, you'll be forced to have whitespace around any binary operators. No more "a+b" in my language. The inherent productivity will be huge.
He just did that. a+b is a single identifier in Stanza. f(x) and f (x) are also different expressions.
I think this could lead to programmers hunting missing or extra spaces, but I could be wrong, and the language is protected from misspelling for an extent.