Think of any problem that we face and you may be surprised to learn that there is already a solution out there. We just need to know where to look – and have the courage to think big. Everywhere, people are devising ingenious ways to tackle everything from inequality and the climate crisis to the challenges of housing, technology and demographic change. Based on his podcast Reasons to Be Cheerful, Ed Miliband investigates transformative schemes and why they work. He demonstrates that a different world is possible and we can get there by implementing the best, most ambitious solutions on a large scale. The opportunity for change is immense. It’s time to Go Big. Natalie Haynes is an author and broadcaster.