Joe talks with Walter Isaacson about his newest book The Code Breaker: Jennifer Doudna, Gene Editing, and the Future of the Human Race. Walter explains the science behind gene editing and the ethical and scientific implications for humans. They also discuss the importance of remaining curious and many of the other lessons Walter has learned writing books to include Leonardo da Vinci; The Innovators; Steve Jobs; Einstein: His Life and Universe; Benjamin Franklin: An American Life; and Kissinger: A Biography.