Out of all the ridiculous religion stories - which are greatly, wonderfully ridiculous - the silliest one I've ever heard is, 'Yeah, there's this big, giant universe, and it's expanding, and it's all going to collapse on itself, and we're all just here, just 'cuz. Just 'cuz.' That to me, is the most ridiculous explanation ever.
A lot of people don't realize this, but probably the one person that gets made fun of in 'South Park' more than anybody is my dad. Stan's father, Randy - my dad's name is Randy - that's my drawing of my dad; that's me doing my dad's voice. That is just my dad. Even Stan's last name, Marsh, was my dad's stepfather's name.
It's not like we have a formula, but I think one of the reasons this show has survived is that it has a big heart at its center. Other cartoon shows have people crap on each other and make racist jokes. But I don't think people tune in for that. I just don't think a show lasts for 10 years without a heart.