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> > DAVID: [i]Size, complexity and new functions are all part of our discussion. The bold makes no sense to me. It doesn't explain at all the shrinkage of 150 cc later on in homo history and simply implies the brain was oversized for current use when sapiens appeared. [/i]
> > 
> > dhw:  I really don’t know how else I can phrase the bold, but perhaps if I put it in block capitals it will finally register. Step One: [b]WHEN SAPIENS APPEARED, THE 1350cc WERE NEEDED. THE BRAIN WAS NOT OVERSIZED[/b]. Step two: [b]ALL 1350 cc WERE USED TO MEET ALL REQUIREMENTS UNTIL – YOUR FIGURES – 245,000 YEARS LATER.[/b] Step 3: [b]THE NEW REQUIREMENTS WOULD THEN HAVE REQUIRED FURTHER EXPANSION, BUT THE BRAIN DID NOT EXPAND. INSTEAD THERE WAS ENHANCED COMPLEXIFICATION.[/b] Step 4: [b]ENHANCED COMPLEXIFICATION PROVED SO EFFICIENT THAT 150cc OF PREVIOUSLY ESSENTIAL CELLS WERE NO LONGER NEEDED, AND SO THEY WERE DISCARDED. HENCE SHRINKAGE.[/b]
> 
> I fully understand your approach and fully reject it, no matter the size of the lettering. Your declaration that a total of 1350 cc were absolutely needed over 300,000 years ago is simply your belief, without any proof. My proof that it was oversized is shown by the shrinkage later on just as you describe by enhanced complexification using and also discarding the excess neurons under very complex uses of our big brain we discovered how to employ. Why were  excess neurons there in the first place if they could be discarded later under much heavier use of the brain? You just don't like my point that God enlarged the brain in anticipation of future use.