Scientist Stephen Hawking warned AI could serve as the "worst event in the history of our civilization" unless humanity is prepared for its possible risks. While AI could potentially undo damage done to the Earth and cure diseases, he notes that it may also spur the creation of powerful autonomous weapons of terror that could be used as a tool "by the few to oppress the many." "Success in creating effective AI could be the biggest event in the history of our civilization, or the worst," he said. Hawking called for more research in AI on how to best use the technology, as well as implored scientists to think about AI's impact. "Perhaps we should all stop for a moment and focus our thinking on not only making AI more capable and successful, but maximizing its societal benefit," he said.