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Originally Posted by DavidDavidDavid  Steve: a caveman, by definition, can't implement abstract concepts like "7 Highly Effective Habits"...the brain volume wasn't there, the frontal lobe was much, much less developed. |
This really depends on how you define "Caveman". Homo sapiens identical to modern humans have been around for well over 100,000 years and for most of that time they lived a primitive 'caveman' life.