xmachina

What was the most difficult technical or design problem that you had to solve during the development of Wolfram|Alpha?

What was the atmosphere at Rad Labs the day after Hiroshima?

Did you ever had the chance to meet Wernher von Braun ? What kind of person was he?

You (and Vasyl Ivanchuk) are my absolute favorite chess players. My question has to do with a game you played in 1999, where you played against the world in consultation. What were your thoughts on the world team and the way they discussed and played the game?

Thank you very much in advance.