LOL! I know what latency is, having dealt with it in our own IT challenges, but had no idea what IPv6 was. Here it is in a wiki, with some nerdspeak inner-dispersed. It makes sense when you read it (the shortage of ISP addresses based upon the creators of ISv4 not grasping the growth of the Internet when they developed the system, etc.), but Jonas is going to have to enlighten us on what about ISv6 enables him to mess around with it.
http://en.wikipedia.org/wiki/IPv6