If we can create machines that are deeply creative and aware and imaginative, then they can apply those powers of creativity and imagination to their own technology. So they would understand those principles and discover new ones, and then reinvent themselves. Once you have that happening, you have much harder mutability in computing media, than you do in this delicate, fragile brain of ours. You would have, basically, some recursive, accelerating self-improvement in the machines. It would result in a cascade of improvement in the performance of machines that would add up towards an intelligence-explosion, as I.J. Good said.