It's interesting you mention Python, the only major whitespace-sensitive language. Many people have strong opinions about that, too, but like parens, it's not r

It's interesting you mention Python, the only major whitespace-sensitive language. Many people have strong opinions about that, too, but like parens, it's not really relevant. Any decent Lisp editor will do automatic indenting, so you can still look at tab depth for meaning. You could always try Clojure, which swaps out () for [] and {} for various things (function arguments, bindings, array literals, map/set literals, etc.)