I think Jaron knows what many engineers who have worked on AI know: That the external promise of AI is far more inflated than the capability of the actual technology. It's simply that when the current technology gets just complicated enough for the above-average person to no longer understand, everyone starts assigning magical properties and expectations to it. This results in short term over-valuations, which inevit…
The real question for me is: What is motivating otherwise very intelligent people to promote the idea that AI will take all our jobs and/or enslave us? Possible answers: 1) To prop up their investments in AI to get higher valuation. 2) To reach a political goal, such as basic income, which is often justified as necessary in a world where computers and robots take over the work force. 3) ?
It's low hanging fruit, the public eats it up. Also people can be very intelligent but not have done the research in the field they are commenting on. Elon Musk and Stephan Hawking aren't AI PhDs.