we talked to mike barnicle, a journalist from boston, and joel steinhaus who ran in the marathon last year and is planning to run again this year. >> i think the focus on the fact that ordinary people fuel the marathon, run the marathon as well as the lines thick with people along all 26 miles cheering goals through wellesley, past boston college down the hills, and you're exhausted and the crowd draws you in comomming down commonwealth avenue and pul-ingè you cançó takeñr another step, that's what the marathonñr skkçó people. >> charlie: and digitalçó journalism with billçóç >> walt and i are not spring chickens, but it's the most exciting period of our career. we were energized an in a way. >> charlie: and biz stone, founder of twitter. >> reading this book is like looking at the world through my eyes. creativity is a renewable resource, be willing to fail spectacularly if you want to succeed spectacularly. opportunity can be manufactured. these are things we hear over and over again but the stories and the way that i present them, i think, are fresh and are, you know, admittedly al