Arc - does anyone remember the fuss Paul Graham made about the 100-year-language? And that he wanted to achieve it with Arc? Well, he has scaled back: Arc is now just a language for exploratory programming. If you look at it, it looks like Common Lisp without the advanced features, with a more compact (but incompatible with other Lisp) syntax and some ready-made libraries to relatively easily put together a web application. Not really particularly exciting. There was already Picolisp for that - and if he is already based on MzScheme, one could simply use that, it has a much larger library and is used by more than just a few grumpy-old-men ... (and the excuse he gives for supporting only ASCII as a character set is simply embarrassing - especially since his underlying infrastructure cleanly supports Unicode ...)