A new study has found it's actually surprisingly easy to model how humans make them, opening a potential avenue to solving the conundrum. In the face of such complexities, programming self-driving cars to mimic people's instinctive decision-making could be an attractive alternative. For a start, building models of human behavior simply required the researchers to collect data and feed it into a machine learning system. By basing the behavior of self-driving cars on a model of our collective decision making we would, in a way, share the responsibility for the decisions they make.