> If I am wrong then I must wonder why humans took a million+ years to get
> around to learning how to write. If we hunted and gathered only for one hour
> per day then on what pursuits were we wasting all our free time? What were
> we thinking about for the remaining hours of the day during which we were
> awake but not looking for food? Did we spend a million years or more just
> contemplating our navels? I doubt it.
>
> -gts

It's well documented that modern hunter gatherers don't do anywhere near as
much exercise as we think.

Ben