We may already feel cozy about artificial intelligence making ordinary decisions for us in our daily life. From product and movie recommendations on Netflix and Amazon to friend suggestions on Facebook, tailored advertisements on Google search result pages and auto corrections in virtually every app we use, artificial intelligence has already become ubiquitous like electricity or running water. But what about profound and life-changing decisions like in the judiciary system when a person is sentenced based on algorithms he isn't even allowed to see. A few months ago, when Chief Justice John G. Roberts Jr. visited the Rensselaer Polytechnic Institute in upstate New York, Shirley Ann Jackson, president of the college, asked him "when smart machines, driven with artificial intelligences, will assist with courtroom fact-finding or, more controversially even, judicial decision-making?" The chief justice's answer was truly startling.