Artificial Intelligence may be the most important technology of our time. It simultaneously has the potential to be extraordinarily good or exceptionally bad. First, imagine a world without scarcity, disease or possibly even aging. It sounds too good to be true but that's the world that the most optimistic futurists think AI will enable. Next, imagine a world of unprecedented inequality, unbreakable authoritarian regimes, or even an extinct human race. That's the pessimists' view of how bad AI might be..