If the real human diet is a totally carnivorous one, so when and especially WHY did the Aborigines (and other hunter-gatherers) include plant food in their diet? Where the lads suddenly tired of going hunting all the time? Why go through all the hassle of hunting, simply hang out at home and let the ladies get some fruit and tubers.

I haven’t met anyone in my entire life yet who doesn’t like sweet stuff (ice cream, cookies, fruit, or whatever). If we had been purely carnivorous, this trait, e.g. the sweet tooth, would have been lost during evolution since there hadn’t been any advantage in keeping it. I have a hard time believing that a taste for sweet stuff stems purely from the period birth to 8. However, I know to little about taste buds and their development.