Kevin McCloud is passionately optimistic about technology and the future, but Jon Richardson, Phil Wang and Alice Levine aren't so sure. Can Kevin persuade his trio of sceptics to see the light?
Jon Richardson checks out advances in prolonging life. Phil Wang finds new ways to make a living. Alice Levine reckons robots are getting as smart as humans.
Longlife, Work & Clever Robots: Jon checks out advances in prolonging life. Alice reckons robots are getting smarter.
Eco Town, Future Farming, Robot Cemetery: America's most eco-friendly town. A future farm in China. And the place robots go to die.
Food, Waste and Robots: A look at the latest advances in food, waste disposal and robots