Isn't Walter Isaacson writing a biography on him? Isaacson did the same thing with Steve Jobs, he followed him around for a long time, getting a sense for his

Isn't Walter Isaacson writing a biography on him? Isaacson did the same thing with Steve Jobs, he followed him around for a long time, getting a sense for his day to day, on top of interviewing the people that spent the most time with him. That's one thing that makes Isaacson one of the best biographers ever, he goes to the source whenever possible and gets candid interviews with the right people.