The tramway dilemma, as elaborated by Judith Jarvis Thomson in 1976, is a philosophical experiment. Imagine an unstoppable tramway. Further down the railway, five people are tied up and at risk. You have the opportunity to switch the tramway’s path to a track where just one person is tied up. What would you do? And what would be your answer if you changed some parameters? What if it were you family, strangers, criminals, children, elderly people? This philosophical problem looks like a fantasy, but it’s one that smart cars will have to solve in the years to come. In case of a crash that would fatally condemn lives, how should the car’s AI react? Take the test and challenge your friends on https://www.moralmachine.net/. The results will surprise you.