IPv6: You Know It Makes Sense
The Internet is deeply, deeply broken, it's just that nobody's noticed. Fortunately, the solution is already to hand. Unfortunately, nobody is really bothering to use it. It's called IPv6, and is version 6 of the Internet Protocol that holds the Internet together; we're currently all running version 4, and it's just not working (version 5 seems to have got lost somewhere).
If you want to know why IPv6 is important and fun, read this great article, with more to come.