Infectious GenerosityFrom the bestselling author, media pioneer, and curator of TED, an inspiring book about one of humankind's defining but overlooked impulses, and how we can super charge its potential to build a hopeful future. Recent years have been tough on optimists. Hopes that the Internet might bring people together have been crushed by the ills of social media. Is there a way back? Chris Anderson, the head of TED, believes that we can turn outrage back into