I do think that is an interesting article, I also have this to add. As the millennia have passed civilisation and the first mass migration out of Africa, means that to a point the development of the human brain has been pretty consistent. So the people utilising Fire for the first time, for instance, could be considered to come pretty uniformly as each disparate group has developed and, one assumes, discovered fires use via storms and other factors when trialled for one thing and then another, it would be a rapid learning curve once you had ‘discovered it’.
conditions are another thing that would cause the human brain to develop faster in certain circumstances and the skill sets of people would develop according to those. For instance, those with alpha dominance and those who wanted it, (one suspects pre tribal), would develop weapons and tactics quicker than those who didn’t. Equally, colder conditions and less abundance of food are equally conditions where the human brain would have to develop an ‘edge’ or deal with factors not seen to that date in question.
Then there is the inquisitive side of the human brain, if you are comfortable in your environment, why step out of it and go elsewhere? This, one suspects, is where the animal in us is never too far away again. The need to be leader or association with the alpha male would also dominate ( it does in politics and business to this day and won’t change), and if you can’t lead in one spot, like an alpha predator, you go to where you can be powerful over others.
I don’t believe historians have got to grips with how people have got around historically, fully, and that will be a work in progress. Interesting all the same though.
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