dear Bill Gates, i m unhappy that u said, that u lost your energy, Plz remember, u are still 58-yrs young, u can contribute lot more for better world; Gandhi and FDR contributed lot for world after 60yrs - http://www.reddit.com/r/IAmA/comments/1xj56q/hello_reddit_im_bill_gates_cochair_of_the_bill/cfbufof