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> > DAVID: [i]What the quote says is in the bold: the existing brain created the concepts that made those artifacts. There can be no other interpretation. Nowhere in any article like it is an attempt made to equate any of these artifacts with a previous earlier form of hominins.[/i]
> > 
> > dhw: And there you go again! Of course the products of the expanded brain provide evidence of what the new hominin/homo could do! But that does not tell us why the brain expanded in the first place! As usual you ignore the point that nobody can know if the FIRST artefacts  were the product of an already expanded brain or of a brain that expanded because of their making.
> 
> Your invention is pure invention. The articles all assume the fossils with the artifacts made them with their bigger brains, and you agree to that much. There is no attempt to explain expansion, as you well recognize, as you push your unsupported creation that thinking of a new concept expands brains; to wit: profound immaterial thinking forces a small brain to gain a much larger size. From habilis to erectus is from 600 cc to 1,200 cc, in roughly 200 cc advances. If habilis goes from 600 to 800, that is an increase of one-third in size for habilis. That is huge to me to answer one of your many complaints as I criticize your idea.
> 
> > DAVID: [i]This forces a brain enlargement from hard thought, and that enlargement allows the brain to think of how to build the new artifact.[/i]
> > 
> > dhw: Yes, hard thought of different kinds is known to cause complexification/enlargement in the human brain (and this may well extend to theoretical thought, as with Einstein). It doesn’t “allow” the brain to think (you claim to be a dualist, which means the brain doesn’t do the thinking anyway) – it is the result of thinking. Nobody knows how it all works, but if the modern brain changes AS A RESULT OF HARD THINKING, there is no reason to suppose that the ancient brain did not do the same.
> 
> You love to forget my soul/ brain complex concept.  There are lots of reasons to criticize the idea. Our brain is so advanced, it can not be compared to much earlier brains in Lucy or habilis. it obviously has capacities the earlier brains did not have.
> > 
> > DAVID:  [i]It is a totally discontinuous process, in contract to what we all experience with our brains if we have designed and made anything we thought of. If I can think of it I can create it. If our brain carries any attributes as evolved from previous brains, why shouldn't it work in similar fashion. Yes it is different: much more complex, and doesn't need to expand. With dhw theory previous brains recognized a need to expand. Really? I'm still with God did it.[/i]
> > 
> > dhw: The process is continuous, but you are not aware that your brain is complexifying or mini-expanding as you do your hard thinking! In my theory, of course the brain didn’t “recognize a need to expand”. It would have happened as spontaneously as your modern brain complexifies.
> 
> You can tout spontaneous evolution. No need for God then. That is your whole point. Find a way to  keep God out of the picture. Your agnostic picket fence tilts  atheistically much of the time Time to run back to God might have done this or that, which always gives up tight design control.