The head of Tesla and SpaceX on Monday shared a link on Twitter to a report about Russian President Vladimir Putin discussing artificial intelligence:
"Artificial intelligence is the future, not only for Russia, but for all humankind," Putin was quoted as saying. "It comes with colossal opportunities, but also threats that are difficult to predict. Whoever becomes the leader in this sphere will become the ruler of the world."
By comparison, Musk said, the saber-rattling from North Korea wasn't much to worry about.
One Twitter follower suggested that private companies, rather than governments, were far better at artificial intelligence.
"I have access to the very most cutting edge AI, and I think people should be really concerned about it," he said.
Last month, Musk joined more than 100 leaders in the field to call on governments to ban autonomous weapons. In an open letter, the group wrote:
"Lethal autonomous weapons threaten to become the third revolution in warfare. Once developed, they will permit armed conflict to be fought at a scale greater than ever, and at timescales faster than humans can comprehend. These can be weapons of terror, weapons that despots and terrorists use against innocent populations, and weapons hacked to behave in undesirable ways. We do not have long to act. Once this Pandora's box is opened, it will be hard to close."