Businesses that grow by development and improvement do not die. But when a business ceases to be creative, when it believes it has reached perfection and needs to do nothing but produce no improvement, no development, it is done.

Boeing just took $20 billion and 10 years to improve the efficiency of their planes by 10 percent. That's pretty lame. I have a design in mind for a vertical liftoff supersonic jet that would be a really big improvement.

Open Graph is a language for structuring content and sharing that goes on in other apps, and we're continuing to build it out longer term. But we found we need to build more specific experiences around categories like music or movies. Where we've taken the time to build those specific experiences, stuff has gone quite well.

At this point the march of invention brought a new factor upon the scene. Iron was dug and forged. Men armed with iron entered Britain from the Continent and killed the men of bronze. At this point we can plainly recognise across the vanished millenniums a fellow-being. A biped capable of slaying another with iron is evidently to modern eyes a man and a brother.

Time after time, history ran over the luddites and romanticists, those who sought to restore the old and delay the new. And every time, history did it with faster, more reliable and more advanced vehicles.

Without tradition, art is a flock of sheep without a shepherd. Without innovation, it is a corpse.