i should also say, i had some help from skidmore who is a pet federal affairs person at the fed who took a year off to help me with the process in the research. i got a good start and had it done within about 14 months. >> a decade more or less when some of the most dramatic economic times in our lifetime, if not on our nation's history, you probably have time to reflect much on your life during that decade, certainly reflect on economic policy. as you wrote over that 18 month time period, what to do you learn about yourself question. >> first of all, a big purpose of it was to think at leisure the through the whole process and that was really useful. i think one of the things i learned, first of all, is there is a lot of hindsight bias. we all create a story about what happened. everything seems inevitable. this had happened, that had happened. as you go back, go back, you realize you were in the fog of war, as things are actually happening you're always trying to make judgments about one probability against another and one risk against another. i saw myself as a a risk manager. summary