intelligence and I remember I gave a talk and there was just one single person in the audience a young lady I said young lady it's very embarrassing but apparently today I'm going to give this talk just to you and she said ok but please hurry I am the next speaker [Applause] since then we have greatly profited from the fact that every five years computers are getting ten times cheaper that's an old trend much older than Moore's law and goes back at least to 1941 when here invests a team Conrad Sousa built the first working