People think that the universe stopped expanding when everything "settled" from the Big Bang when in fact the Universe is still expanding as we speak. In a way its more of "inflating". Thus the "Inflation Theory". So what would happen if something caused the world to expand quicker? Well as the world expands things are thrown apart but the universe expands so slowly that the atoms can always piece themselves back apart in microseconds. But if it went quicker it would be a disaster. Imagine a balloon with dots on it. The dots are stars. Now the dots might be fairly close to each other but when you inflate the balloon suddenly they can be very far apart. And the dots themselves didn't move. Thats what would happen if there was Hyperinflation. The stars wouldn't be moving, space itself would be moving. Everything would be flung apart. I'm not talking just planets and stuff moving. I'm talking about the very atoms being flung apart. Everything would be demolished is only seconds and we probably wouldn't even know it had happened.