. >> steve wozny ago talks about it. they had to do a game in four days and wozniak said impossible and then wozniak did it. he said that's the power of it. he can distort reality and make you do what you didn't think you could do. >> did you ever fall under that power. >> oh, i am sure. >> reporter: they had over 40 conversations, but to balance out his influence isaacson drews from interviews from ex-girlfriend, rivals and some he long disputed. >> hey. >> hey. >> from his earliest days on the public stage this adopted former delinquent, this acid-dropping hippie turned brash entrepreneur began to understand the power of his charisma. >> today for the first time ever, i'd like to let macintosh speak for itself. >> hello, i am macintosh. it sure is great to get out of that bag. >> reporter: that force field turned him into a mul multimillionaire in his 20s then got him fired from the company he made and helped save apple from ruin. you need that to reinvent the telephone. >> and we are calling it iphone. >> reporter: an