When I was a kid people thought it would be a long time before computers could adequately translate natural language text, or play Go against a human being, because you’d need some kind of AI to do those things, and AI seemed really hard.
Now we know that you can get pretty decent translation and Go without anything like AI. But AI still seems really hard.
Quomodocumque 
AI is hard because understanding is hard and all the success so far has been achieved by strategies that bypass understanding. Maybe the gold standard should be renamed Automated Understanding (Au).
On the other hand, there’s the thing where whenever we solve an AI problem we stop calling it AI…
Yes! Exactly. But whoever wrote that Wikipedia article seems to think of that practice as a mistake.
If only the word ‘artificial’ were associated with the idea of art, or expert skill gained through voluntary apprenticeship (instead of suggesting the factitious and unreal), we might say that logical refers to artificial thought.
— John Dewey • How We Think
I wonder how close we are to something that can pass the Turing test.