Re: Factor: XKCD. If you want to get an impression of one of the crazier languages - John Benediktssons Blog has a lot of example snippets in Factor, which are usually directly usable in the Factor REPL (or create manageable vocabulary extensions). I am always impressed by the compactness of Factor code. John's code also has the advantage that I can usually understand what is happening - Slavas code, for example, is often much more idiomatic and therefore cryptic for me. But this is certainly also due to the fact that Slava usually writes about the internals of the language, while John simply describes small tricks.