Obscene stuff like this seems perfect for the young. Not quite at the same level, but I wrote a custom tiling GUI in befunge when I was 19 (well, the befunge program output draw instructions which were rendered by a traditional C program).

Now, 19 years of professional software engineering later, I don't think my actual code-outputting skills are much better than they were at 19 - all I have now is more knowledge about the process and human side of software engineering and some extra esoteric facts and histories stored in my head. In fact, maybe I'm even worse, because I wouldn't have the time or patience to actually sit down and write something like that in befunge any more, because my priorities have changed.