The world as in the collective body of existence, not Earth. Heh, you could toss earth into the sun and most output you would get is "turn that damn music down you idiot!".
I have this theory: One day, my friend Maiya will drop her backpack and Earth will be flung out of orbit. It will plummet into the sun, and then mars will be like "Hey, we wanted to destroy that!" So there will be this huge war between Mars and the Sun, and Mars will win, and then yeah. I haven't gotten much farther on this theory, but I'm working on it...