drove you yes so if you can build a machine that learns to solve more and more complex problems and more and more general problems older then you basically have solved all the problems at least all the solvable problems so how do you think what is the mechanism for that kind of general solver look like obviously we don't quite yet have one or know how to build one who have ideas and you have had throughout your career several ideas about it so how do you think about that mechanism so in the 80s I thought about how to build this