Quartz

Bill Gates hosted a Reddit Ask Me Anything session yesterday, and in between pushing his philanthropic agenda and divulging his Super Bowl pick (Seahawks, duh), the Microsoft co-founder divulged that he is one in a growing list of tech giants who has reservations when it comes to artificial intelligence.

In response to Reddit user beastcoin’s question, “How much of an existential threat do you think machine superintelligence will be and do you believe full end-to-end encryption for all internet activity [sic] can do anything to protect us from that threat (eg. the more the machines can’t know, the better)??” Gates wrote this (he didn’t answer the second part of the question):

I am in the camp that is concerned about super intelligence. First the machines will do a lot of jobs for us and not be super intelligent. That should be positive if we manage it well. A few decades after that though the intelligence is strong enough to be a concern. I agree with Elon Musk and some others on this and don’t understand why some people are not concerned. Read more