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> > dhw: [i]You wrote: “[b]our brain has the adaptability to react to any and all physical and mental and emotional demands we place on it[/b]” and you have agreed that it reacts and adapts without God “stepping in”. The brain is a community of cells, and if he can give those cells the autonomy to react and adapt, why should he not have given the same autonomous ability of adaptation to all the body’s cells? See the errors thread for errors.[/i]
> > 
> > DAVID: [i]The brain we got from God was oversized to begin with. Your theory is based on that example and then extrapolated beyond the only facts we have. The complexification mechanism works beautifully as designed. Do you think the pre-sapiens neurons knew enough of future use by sapiens to have self-designed by themselves such a mechanism for future use? I sure don't.[/i]
> > 
> > dhw: You seem to be obsessed with shrinkage, which is totally irrelevant to my theory! For the umpteenth time, my theory is based on the known fact that the modern brain – as you have confirmed over and over again – has an autonomous system enabling the brain to change IN RESPONSE to new requirements. These changes are mainly in the form of complexifications, but there are also examples of EXPANSION, and so it is perfectly feasible that the same autonomous system engineered complexification and expansion in pre-sapiens brains. And in answer to your question, no, I don’t think pre-sapiens neurons knew about future use! I think pre-sapiens brains expanded in order to meet new requirements – just as sections of the modern brain have done. It is you who initially harped on about your God “anticipating” how the enlarged brain would be used, but you then got in a complete tangle over what exactly he anticipated. I’m pleased to see you have now dropped that subject.
> 
> As usual, ignore an oversized brain that shrinks, exactly the opposite to your theory about brain expansion. Nothing in the facts we have supports your idea. The only 'EXPANSIONS' in our brain relates to heavy use of memory in London cabbies, changes in musicians' brains with millimetres of thickness in small areas. The only expansion  we know of from fossils are much larger than any current expansions. As for God's knowledge about how we humans might use our brain, I'm sure He didn't anticipate every last usage in games we  might  invent, and I've listed possible examples. Distorting my part of our discussion again.