Without thinking much I said “artificial intelligence”, but having thought about that a bit more, I think it’s probably right.
To be clear, AI (under the common scientific definition) likely won’t work. You can say that about any new technology, and it’s a generally correct statement. But I think most people are far too pessimistic about its chances – AI has not worked for so long that it’s acquired a bad reputation. CS professors mention it with a smirk. Neural networks failed the first time around, the logic goes, and so they won’t work this time either.
But artificial general intelligence might work, and if it does, it will be the biggest development in technology ever.