And she said, "OK, but please hurry: I am the next speaker!" (Laughter) Since then, we have greatly profited from the fact that every five years computers are getting ten times cheaper, which is an old trend that has held since 1941 at least. Since this man, Konrad Zuse, built the first working program controlled computer in Berlin and he could do, roughly, one operation per second. One! And then ten years later, for the same price, one could do 100 operations: 30 years later, 1 million operations for the same price;