David Brin is an astrophysicist whose international-bestselling novels include Earth, Existence, Startide Rising, and The Postman, which was adapted into a film in 1998. Brin serves on several advisory boards, including NASA’s Innovative Advanced Concepts program, or NIAC, and speaks or consults on topics ranging from AI, SETI, privacy, and invention to national security. His nonfiction book about the information age, The Transparent Society, won the Freedom of Speech Award of the American Library Association. Brin’s latest nonfiction work is Polemical Judo. Visit him at www.davidbrin.com.