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As our ability to create AI grows, it’s important that we assess how it behaves in different situations. DeepMind, Google’s AI division in London, has been concerned with one aspect in particular: what happens when two or more AI have similar or conflicting goals. The team wanted a test similar to the “Prisoner’s Dilemma,” a popular game that pits two suspects against one another. In this scenario, you’re given a choice: testify against the other person and you’ll go free, while they have to serve three years. If you both say yes independently, however, you’ll serve two years in jail.
2016 HAS BEEN the biggest year for the Harry Potter universe since the book series ended in 2007. In April, its Universal Studios theme park expanded to Hollywood; over the summer, a stage prequel debuted in London, with a story courtesy of J.K. Rowling herself. And now comes the film adaptation of Fantastic Beasts and Where to Find Them, a fictional textbook Potter and his classmates studied at Hogwarts. But all this fan service—known in more cynical circles as “brand expansion”—has caused the world that Rowling created to sag under its own weight.
Janet Robertson, a documentary filmmaker in New York, helps look after her uncle, Vincent Fahey. Ms. Robertson hired a skilled traveling companion for Mr. Fahey on a London trip.
Doug Iannelli, owner of Flying Companions in Atlanta, managed the travel reservations and logistics, slept in an adjoining hotel room and otherwise accompanied Mr. Fahey full time as they took in the museums, restaurants and tourist sites. When needed, Mr. Iannelli provided a wheelchair and made sure they took frequent rest breaks.