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Ep299 - Ray Kurzweil | How To Create A Mind

Talks at Google

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The Cretaceous Extinction Event

100 million years ago these mammals emerged rodent-like creatures with a neocortex that was the size of a postage stamp. By the time we got the primates it's no longer a smooth sheet but has all these convolutions and ridges to increase its surface area. If you take the human neocortex you can stretch it out into a flat structure thesize of a large table napkin. It's about the same thickness, still thin,. But it has so many convolutions and Ridges it actually comprises 80% of the brain. And that's where we do our hierarchical thinking.

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