Introducing the brain: half a brain is just fine (Introduction)

by David Turell @, Monday, March 16, 2020, 18:48 (118 days ago) @ dhw

DAVID: Good point about complexification. We have to account for the shrinkage so I made the possible assumption too bold. What can be thought is the complexification mechanism complexified itself and is still present in a much smaller form. That seems logical. As for the bolded snipe above you constantly want to guess at God's reasons. I don't doubt my thinking because I do not guess at what I cannot know.

dhw: You do so all the time, from the existence of God to all the assumptions that underlie your illogical theory of evolution.

I don't guess about God. I've concluded He exists.

DAVID: As for expansion of the brain, obviously a very limited form of it exists in this brain , and proves nothing more about ancient brains. In our brain we are dealing with a very specialized result which is built on the past, reflects it but is not the past.

dhw: As always, nobody has “proof” of any theory. I don’t think anyone would disagree that the present is not the past. But if the present brain is built on the past brain, there is no reason to assume that its process of changing itself in response to new actions was reversed in the past by changing itself in anticipation of new actions.

That can be your assumption, but it is not at all the same as our brain confining some new activity to a small enlarged area.


dhw: The soul uses the (more) complex mechanisms of the brain to gather information and it uses the (more) complex mechanisms of the brain to implement those concepts. Whereas over and over again, you have the brain doing the conceiving. Do you really want me to produce a list of quotes?

DAVID: My quotes about the brain is a shorthand so I don't rewrite my entire theory each time it comes up. You understand it so quit sniping every time I use it. Lets be considerate of each other.

No, I don’t understand it. The expansion of the brain as the cause of new concepts is crucial to your theory! That is why you make such statements as “an earlier brain cannot conceive what a more advanced brain can conceive and create”; “The existing brain conceives of the new object and makes it. The older smaller brain has nothing to do with it. It can’t conceive of the new idea”; “The second bold does not answer my point that an earlier brain cannot conceive of an idea it is not capable of conceiving;” “Our thinking brain; “the more thoughtful brain has shrunk” etc. I keep reminding you that the dualist’s thinking soul uses the brain for information and implementation.

I know the soul's role in my way of looking at dualism. I think you do understand it, as shown in your reminder. To repeat: for the soul to develop advanced concepts it must use a brain of advanced complexity. The problem is the innate ability for an existing underlying brain to accommodate the development of new concepts. Your 'information and implementation' requires understanding that implementation has two parts: developing the abstract concept and then actually making the new idea as a product. It requires abstract thought. Abstract thought is not required to simply receive information. but coordinating the new information into a new concept requires abstract thinking. Our brain at 315,000 years ago was larger than now, and we had to learn how to use more fully. More advanced language is thought to be only 50-70,000 years old. The brain shrank 150 cc in the past 35,000 years. I conclude our newer larger brain contained the mechanisms to allow all of this and the smaller size means our learn ing to use our brain accomplished all of what was required in ringing the brain to its current state. As a result evidence of complex civilization is less than 12,000 years old.

I'll stick with what archaeologists present: Brains of a given size produce the artifacts found with them and are solely responsible for their appearance. No relation to past brains. And remember the resident soul is using the current brain .


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