Book excerpt: Science journalist John Horgan presents a radical new perspective on the mind-body problem and related issues such as consciousness, free will, morality and the meaning of life. Horgan argues that science will never discover an objectively true solution to the mind-body problem because such a solution does not exist. Horgan explores his thesis by delving into the professional and personal lives of nine mind-body experts, including neuroscientist Christof Koch, cognitive scientist Douglas Hofstadter, child psychologist Alison Gopnik, complexologist Stuart Kauffman, legal scholar and psychoanalyst Elyn Saks, philosopher Owen Flanagan, novelist Rebecca Goldstein, evolutionary biologist Robert Trivers, and economist Deirdre McCloskey.