No, no. Well, you know, biology is such a complex system. It’s totally different from the engineering. We cannot design. Many people tried to find the therapy for cancer, but all failed. And myself, I never expected my research, working on the immune system, would lead to the cancer therapy. But, in a sense, I’m very fortunate that I also thought about it. You know, you have to try many things and if you’re lucky you can hit, but you have to pursue. That’s my feeling.

Unfortunately, in the case of Iraq, I believe we could have done that through an inspection process. I was calling for a few months more to complete our work. We hadn’t seen indications of weapons of mass destruction. We hadn’t seen indications of nuclear weapons. ... Unfortunately, it didn’t work that way. There was faulty intelligence. There were lots of other considerations that made a decision to go to war tempting, to get rid of Saddam Hussein.

Whenever you’re making a movie, especially when you’re writing, you always have self-doubts. I did the first location shooting in Tunisia.

I had such failure for the first ten years in Silicon Valley. General Magic — over a billion dollars invested in 1990 dollars! Could you imagine what that is today? The best team in the world. We were told we were gonna topple Microsoft and all these companies.

And I acted when the actors didn’t show up. As the director, I knew all the lines and I took over more times than I wanted to. I didn’t know much about directing, but I was the only one willing to do it. Someone had looked around and said, “Who’s going to be the director?” I said, “I will.” I said that because I knew my way around the library. So I went to look for a book on how to direct a play. I found one called The Fundamentals of Play Directing and checked it out. I didn’t understand anything in it. It was all about form and mass and balance. I flipped through the book and there in Appendix A I discovered what to do on the first day of rehearsal. It said, “Read the play.” So I went to the first rehearsal very confidently and I said, “Okay, this is what we’re going to do. We’re going to read the play.” We did that. Now what? I hadn’t got to Appendix B. So I said, “Let’s read the play again.” That night I went back to the book and sort of figured out what to do from that point on.

I think he was expecting someone with a more strident tone and antagonistic demeanor. I think he was surprised to find out that I’m a pretty likable person, and that despite out different views I conducted myself with a civility and grace of manners my mother always demanded of me. For myself, I found him to be a more likable person than I had imagined. And I certainly value and respect the contributions that he has made to the theater; our differences of opinion on black theater do not dampen my respect and appreciation, nor in any way invalidate the considerable contributions that he has made.