CommentWhy many inventions, from flying cars to smart robots, fail to launch Some technologies never quite make it. But a new book, The Long History of the Future, shows how certain problems are just bigger and thornier than we thought Culture
CommentA powerful new book shows why it's so important to understand war In his latest book, Why War?, historian Richard Overy grapples with a question that stumped Albert Einstein and Sigmund Freud – why do humans persist in waging war? Culture