Seeing AI, Microsoft's newest app, narrates the world it sees for blind people

Literally, you can hold up your phone and it'll tell you what it sees. But one promise of the future, computers that can help blind people see, is starting to arrive. The latest example is Microsoft's Seeing AI, a free iPhone app released Wednesday that "narrates the world around you." Point it at a park, and it'll tell you what the scene looks like. Point it at a person, and it'll tell you if they're smiling. Point it at a dollar bill, and it'll tell you how much.