When I look at the remains of our ancient ancestors I wonder when the first stirrings of human thought emerged. We can see the first art on cave walls, and first myths in the bloated figures of long gone goddesses, but when did humans first dream? Did they dream of taming fire or lashing sharpened stones to sticks? Did they dream of taming beasts to ride, or somewhere they could settle rather than forever chasing after their prey? Did they dream of where they would go after they died, or who might be staring into their empty eyes aeons later?