Could we please lay this empty platitude to reast? "Planes don't fly by flapping their wings like birds, so why should computers think like humans?".
Well, except that we were only able to built flying machines (rather than floating ones) when we figured out why birds can fly [1].
And then, the whole of our computer science is based on the idea that a computer is, actually, the same kind of system as a human mind- a computational device, a machine that can compute everything and anything that can be computed. This is the deep insight that informs the ambition to create artificial intelligence: that brains are a kind of computer, computers are a kind of brain, and they can both compute the same kind of program, in other words- intelligence.
Though we may not know how human minds work exactly and therefore we can't readily copy them, it is thanks to Turing's and Church's insight that we even have computers today. And so, in a very real sense, we can only ever create thinking machines that do intelligence in the same way that humans do intelligence [2].
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[1] I mean, a boomerang is really an airfoil so I guess Australian Aborigines had figured out flight long before the Wright brothers, but I gues they didn't need flying vehicles back then?
[2] Unless there is a paradigm shift and we figure out a better way to do it etc etc disclaimer disclaimer.