The world is facing an unprecedented number of unsolved global crises-from climate change to inequality, mental health to political instability. Unsolved dives deep into 25 of the most pressing problems we still can't fix, offering insights into what must be done to overcome them. This book explores groundbreaking, transformative solutions that can reshape our future, challenging readers to rethink what's possible. It's a call to action for those who believe that solving the world's toughest problems is not only necessary-it's urgent.