Is a debug log, the things you are thinking about right now have already happened, you are finished with each thought before you become aware of it.
Human Intelligence isn't special, it's certainly not magic, it's just a shitload of algorithms running in parallel with a human readable log. The current AI efforts aren't failing because they haven't replicated 10^10 neurones, that's like saying that transistors can't replicate the valve based monsters that preceded them, they're failing because the mix of algorithms is really fucking complicated.
We're taking tiny steps towards AI and it can seem like it's never going to happen, but (prediction), it will occur suddenly, in a single great jump from barely started, simply because someone changed a parameter or made a minor tweak to an algorithm. Machine AI is inevitable.
/side note: In my youth I worked in print, I remember a manual we printed for a 'Red Baron' WWI flying ace game which contained background info on the main protagonists, the aformentioned Red Baron, an English chap I can't recall, and an American, Eddie Rickenbacker, born 1890, died 1973. Eddie was born before powered flight and died after man had stepped on the moon. I was blown away by the progress this man had seen in his lifetime, and for a long time it's seemed like it was an aberration, fuelled by three wars, two hot and one cold, but I'm starting to think the changes wrought in my lifetime will blow away a mere trip to the moon.