Perl 6 is really an interesting language. There are a lot of tools like this that give you the power to say a lot with a very small number of characters. (The

Perl 6 is really an interesting language. There are a lot of tools like this that give you the power to say a lot with a very small number of characters. (The flip side, of course, is that you can easily make incomprehensible code—I wouldn't want to read code using any but the most natural user-defined operators—but if you set that aside, Perl 6 has a ton of cool ideas.)