To Tom and Debbie Gilchrist
for years of friendship and advice
With thanks to:
David Brin, Tony Daniel, Preston Dennett, J.R. Dunn, Ken Estes,
Russell Galen, Tom Gilchrist, Brian McCaleb, Elizabeth O’Brien,
Elena Pagter, Serena Powers, Tina Princethal, Joe Stefko,
Toni Weisskopf, and Bill and Peggy Wu