you can’t build something that “resembles” the human brain in one surface facet and expect everything else to come out similar. This is science by voodoo doll. You might as well build your computer in the form of a little person and hope for it to rise up and walk, as build it in the form of a neural network and expect it to think. Not unless the neural network is fully as similar to human brains as individual human brains are to each other.
So that is one example of a failed modern attempt to exploit a magical Law of Similarity and Contagion that does not, in fact, hold in our physical universe. But magic has been very popular since ancient times, and every time you ban it it just comes back under a different name.
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But there is just no law which says that if X has property A and Y has property A then X and Y must share any other property. “I built my network, and it’s massively parallel and interconnected and complicated, just like the human brain from which intelligence emerges! Behold, now intelligence shall emerge from this neural network as well!” And nothing happens. Why should it?
This has aged poorly: