The aliens were taking over the world, until Homer started chasing them with a board with a nail in it. It was actually a quote from Kang the alien. Heres an epic quote all of you should relate to: "Some people will tell you that slow is good – but I’m here to tell you that fast is better. I’ve always believed this, in spite of the trouble it’s caused me. Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba…" — Hunter S. Thompson