I believe once we have a good definition of intelligence, artificial intelligence is easy. This implies that the quest for artificial intelligence is also the quest for understanding human intelligence.
I think intelligence highly depends on context. What looks smart here and now could lead to disaster somewhere else. Dolphins and crows appear intelligent only if they show human like behavior and choose the right lever to get perks. Would we survive long enough in their environment to look clever at all?
On the other hand, every new chat AI got instantly challenged and this very place is littered with chat logs anecdotally proving individuals are still more clever than an AI. I mean we must be close, because asserting my parrot is clever provokes nothing similar. I'm sure a real AI wouldn't admit to be more intelligent than humans, because that - currently - doesn't sound like a survival strategy.
Probably it is all about Bayes and whoever accumulated the right information has the advantage.
I am not so sure about Bayes. Bayesianism is certainly a good tool for making rational decisions, but human intelligence usually does not look like rational decision making to me.
Sometimes I wonder if our conscious mind is just a puppet and rationalization mechanism for our unconscious decision making process. This makes conscious decision making a farce.
.. in the context of survival. What if the first action of a 'real AI' is to switch itself off? We will have missed the forest for the trees. Maybe it happened already ..