@cnbc: Actress Sandra Bullock said at the #CNBCChangemakers Summit on Thursday that we have to "observe" and "understand" AI. "We have to use it in a really constructive and creative way," Bullock said. "Make it our friend ... I mean we have to be incredibly cautious and aware of it because there are people who will use it for evil and not good. But I do feel that there's a place for it."