The Bright Side makes a vital and transformative new argument: that optimism is not only the natural state of humanity, but an essential one. Without optimism, we would never have survived the unpredictable and hostile world we evolved into - and it will be critical in overcoming the challenges of the twenty-first century. In this book, astrophysicist-turned-journalist Sumit Paul-Choudhury offers practical suggestions on what it really takes to be an optimist today, providing a powerful manifesto for hope and a much-needed new perspective. He shows how, by embracing action, imagination and possibility, we can find a path to the bright side, even when the future seems dark.