When we look at a tragedy like 9/11, we think of who and what we lost at that moment.  We forget that a future is also lost. That many of those killed that day may have changed and reshaped the future. Certainly Danny Lewin, who was on AA flight 11, the first plane to hit the towers, had the potential to do just that.  During his brief 31 years, Danny was a father, a soldier, a brilliant mathematician and an entrepreneur.  Along with his MIT professor, Tom Leighton, he would reshape the Internet into the robust system that was able to withstand the traffic and news of 9/11 itself.  What else he might have accomplished in his lifetime is a loss not just to his family, but to all of us.Molly Knight Raskin lets us all share Danny's story in No Better Time: The Brief, Remarkable Life of Danny Lewin, the Genius Who Transformed the InternetMy conversation with Molly Knight Raskin: