Human Brain's Bizarre Folding Pattern Recreated in a Vat

Scientists have discovered exactly how the human brain gets its crinkly, wrinkly appearance in utero. It turns out that the huge explosion in the number of brain cells in the brain's outer layer, called the cortex, forces that layer to swell and then collapse in on itself to form those characteristic creases. "This simple evolutionary innovation, with iterations and variations, allows for a large cortex to be packed into a small volume, and is likely the dominant cause behind brain folding, know