Beyond the fear of A.I. taking over our nuclear arsenal and attacking us is the very realistic fear that A.I. along with automation and robotics, will quickly and dramatically end the need for human employees in very many parts of the economy. Left unchecked, the wealthy will reap a windfall from these changes and the working class will be plunged into poverty, unless we make changes to our economic system that will turn A.I. into a blessing rather than a fearsome curse.