Brain expansion (Evolution)

by David Turell , Saturday, July 04, 2020, 20:00 (1391 days ago) @ dhw

dhw: The only evidence I do have for my theory is that the sapiens brain has stopped expanding and RESPONDS to new requirements by complexifying. It does not complexify in anticipation of new requirements. I see no reason why earlier brains should not have done the same, but when the capacity for complexification proved inadequate, the cell communities responded by adding to their number. The same process of RESPONSE to new requirements, just as organisms in general RESPOND to new requirements, as opposed to being fiddled with in anticpation of new requirements.

An excellent presentation of your natural materialistic theory. My faith tells me God expanded the brains at each stage of homo evolution.

dhw: “The brain cannot think without the soul using it” means that the brain CAN think if the soul uses it. The dualist’s brain does not think. It is the soul that thinks. Please stop messing around with words.

DAVID: Finally clearly stated. Which implies my rule: brain complexity level allows soul thought complexity level.

dhw: At least you have finally dropped your insistence that the brain thinks. I cannot for the life of me understand why you don’t just accept that the dualist’s soul does the thinking and uses the brain for information and for implementation of its thoughts...Your “rule” leaves out half of the process – and it is the half that takes us back to the possible cause of brain expansion: namely, the fact that the brain RESPONDS to new requirements.

I am at totally different poles apart from you. Restated for the umpteenth time. The soul uses the brain to think. The brain is just a mechanism for thought, which means the level of the soul's complexity of thought depends on the complexity of neuronal networks in the physical brain. The bold is a limitation you place on the soul/brain working relationship, which I do not accept. Yes, the brain offers information, but production of complex thought depends upon what the brain offers for use.

dhw (on the subject of brain shrinkage): Why specially design unnecessary networks which can be discarded? Why not design the right amount of plasticity in the first place? Yet another example of the various weaknesses you are now finding in your previously all-powerful, all-controlling, all-knowing God?

DAVID: No weakness. Your confusion. The plasticity system is perfectly designed to make use of the extra networks to end up with a tailored brain that fits exactly the uses we find to put it to.

dhw: But according to you, your God plonked the extra, superfluous networks into sapiens’ brain! They were NOT used, and that is why they disappeared and the brain shrank!

The usual twisted interpretation of my thoughts, which never advances discussion. Simply as above, extra circuits allowed for plasticity to modify our brain for the uses to which we would put it. Purposefully placed by God.

DAVID: This again shows you have forgotten we have free will and God doesn't know exactly how we will use it. I don't view this as a defect in my God.

dhw: So he just didn’t know he was giving us too many networks. Oops!

Same distortion. Quit it!! I've said God knew we would put it into multiple uses and wanted us to do the modification ourselves by the plasticity mechanism He gave our brain.

dhw: Add all this to a God whose only purpose is to design H. sapiens and who inexplicably proceeds not to design H. sapiens till he’s designed millions of other non-human life forms, and we have a God truly unrecognizable from the all-powerful, all-knowing and always-in-control one you used to tell us about. Now I seem to stand alone in suggesting that he knew exactly what he wanted and did it!

I love it! I fully agree with the bold!!! And He is quite all-powerful. After all, He started the universe, evolved it to create a massive Milky Way which then, under His guidance produced an Earth perfect for life, which He then invented, warts and all!!! Fuss over the warts. He is still God. Look what He has produced. But no, all you look for are the negatives, which allow you to deny Him. There are so many positives which 'prove His existence beyond a reasonable doubt' (Adler).