Cooking makes us smart!
Well, sort of.
In most animals, the gut needs a lot of energy to grind out
nourishment from food sources. But cooking, by breaking down fibers
and making nutrients more readily available, is a way of processing
food outside the body. Eating (mostly) cooked meals would have
lessened the energy needs of our digestion systems, Khaitovich
explained, thereby freeing up calories for our brains.
Instead of growing even larger (which would have made birth even
more problematic), the human brain most likely used the additional
calories to grease the wheels of its internal functioning.
Classical Greek lent itself to the promulgation of a rich culture,
indeed, to Western civilization. Computer languages bring us
doorbells that chime with thirty-two tunes, alt.sex.bestiality, and
Tetris clones. (Stoll 1995)