Elliot touches on a point that is ALWAYS obscured when PALEO MAN is being discussed. If his diet was so hot and it was so good for him then why did he only live to the ripe old age of 30? I know, I know, you're going to tell me that there are so many other factors. Believe me, I've thought it through and I just don't buy it. If the basis of selection is the justification for the continuance of the specie then it seems that agriculture has won out already. The fact that humans are basically lazy has not changed in the last 10k years either. If Paleo dude had access to mega carbs he probably would have had a gut like H Simpson and Paleo dudette would have had a kiester like Large Marge the same as today.
"Lack of sleep makes cowards of us all."