Is it true that the first man who will live a thousand years old is sixty today? Or that in less than a decade there will be hotels in space? Is it possible that in the future, if we need some new organ, we can grow it in our own body? Or that there are machines that capture CO2 from the atmosphere and end the risks of climate change? Or that the energy in our homes is generated by the glass of our windows? In the opinion of many scientists, the various sciences are one step away from transforming the world again. Advances in biology, medicine, nanotechnology, robotics, and new techniques for energy and food production, among other scientific advances, invite us to assume a better world. Will it be so? Mark Stevenson asked him and explored the horizons of science to meet those who are working best in each of these areas. After practically circumnavigating the world in search of answers, Mark returned filled with cautious optimism about the future. And that's what counts in this interesting and always fun and always fascinating book that will renew our desire to continue believing in what the future holds.