Introduction: the new world of extra time -- The death of birth: demography tips the balance of power -- Younger than you thought: the stages of life are changing -- Just do it: if exercise and diet was a pill we'd all be taking it -- No desire to retire: don't give up the day job -- New neurons: old brains can learn new tricks - and they must, to keep in shape -- In the genes: immortality isn't here yet, but anti-ageing drugs are on the way -- Out of the ghetto: everyone needs a neighborhood -- Health revolution: robots care for you, humans care about you -- Finding ikigai: purpose is vital -- Generation hexed: we ned a new social contract -- Epilogue: a different, better world.