we arelooks good when working together, but to do that, you are giving up control. i will be doing more than the director would want to do on mars. i would like to have more capability than a science mission needs, but if we do two separate missions, the cost of that is some larger number. if we could integrate those , we are dancing human space -- we are advancing human space flight into the solar system, that is how we win. we looked at away holistically we can work together. the challenge is big enough, it will not be solved by any mission director by itself. it has to be the whole of the agency and the international community pulling together. >> i would think getting to mars would be easier than getting the nasa directors to work together. [laughter] >> i am not going there. brodie, it international space university. ,hroughout my time in nasa occasional wildcards that help you along, but sometimes present additional challenges. one thing i'm thinking about is the confusion and her offer of significant private resources from some individuals with very deep pock

you see in the political debate now, from the outside, any of us arelook at what politics pretty now.e given the incentives to do so. what you see is a total absence of bringing together two important parts you want. what the data suggests we should do, and how to use good intuition and judgment and assessment of help humans want behave. it is a seem hard. plainly it is. but i also believe that intuition is fed by a series of experiences which is data. >> that is one advantage that all the people have over younger people. younger brains are very plastic and sharp. we do have wisdom and experience. >> what would you have done if you had not come together? shacke living in a writing a book that nobody would have read. profited. you have [laughter] congratulations. >> thank you for having us. >> where do think the empire goes? >> we know where it is going next. we are working on golf. >> what are you going to tell us? >> we're going to tell you how to think your way around the golf course. how to use freakonomics to lower your scores. we are engaged in a massive field experiment of tryin