Our lungs do not produce the oxygen which we find necessary to breathe, so why should anyone think it unusual that our brain does not produce consciousness which we find necessary to think?
Answer by Gideon Smith-Jones
I am totally gobsmacked by this question, Theodore. Wow. So many possible lines of inquiry here.
Our lungs don’t produce the oxygen we need, as you well know. But if they did, their function could surely not be to oxygenate the blood. Because then it wouldn’t be necessary to breathe at all. We could produce all our own oxygen through the process of chemical reduction without having to take any from the outside world. Assuming that the oxygen is used to produce energy from food through the process of oxidation, fundamental laws of chemistry and thermodynamics would in tatters.
A more plausible theory is that human beings and animal life in general were created by the plant world in order to produce all the carbon dioxide it needs for photosynthesis. No fundamental laws broken here, but it would somewhat upset our view that human beings are higher than plant life. (It would make an interesting variation on the Matrix scenario of human beings as Duracell batteries designed to keep the computer world up and running.)
This is speculation, right? And as much as we know about human physiology and biochemistry, so little do we know about the nature of consciousness, how it ‘acts’ and how it is ‘produced’. So the field is open for any theory that sounds even a little bit plausible.
The Ancient Greeks were there first: the ‘Air’ of Anaximenes, the ‘Nous’ of Anaxagoras, and Xenophanes’ ‘One God’ who ‘sees all’ and ‘shakes all things by the thought of his mind’. The invisible substance that pervades all things has purpose. It is mind-like. Anaxagoras offers the most interesting version of this hypothesis. Unlike air, Nous is everywhere, it even pervades rock and solid metal. When Aristotle formed the metaphysical theory we know as ‘Hylomorphism’ to account for the ultimate nature of existence and change, it was the thought of Anaxagoras, out of all the Presocratics, that most influenced him.
So much for history. I take your idea to be this: the brain doesn’t ‘produce’ consciousness as material monists foolishly believe. Rather, its function is to interact with consciousness which is already ‘out there’. One well-know version of that story is the mind-body dualism of Descartes. The tiny pineal gland in the brain is the place, Descartes thought, where mental substance is able to move or be moved by the ‘animal spirits’ thus producing speech, action and perception. The problems with Descartes’ mind-body interaction theory are well known, so I won’t repeat them here.
However, here’s another theory, much closer to the Greeks, that you might like. Nous is everywhere. In the beginning, its powers were limited because it had so little to work with. All Nous can do, the sum total of its powers, is to alter probabilities, to make the relatively improbable probable. And so it was that the massive improbability of matter, energy and space appearing from nothing was conquered.
It was Nous that first nudged basic protein molecules together to produce molecules of DNA, that even today maintains the balanced processes in every living cell (a phenomenon that biologists have yet to fully understand), that in tiny stages pushed evolution all the way up the steep gradient of improbability ultimately to create human life. By manipulating quantum effects in the brain, you and I become its eyes and ears. We are the means to its end, which was simply, all along, to overcome its blindness and its solitude.
In the beginning Nous didn’t know what it was doing. It was not in any way ‘conscious’. Certainly not a ‘god’. It was just blindly thrashing about. But, gradually, as more and more order was created, it discovered its ‘purpose’. Through tiny steps, it transformed itself into the Demiurge of nature.
Basically, all I’ve done is rehash the doctrine of the Upanishads with added baroque or filagree to give the impression of being ‘scientific’. In the words of Alan Watts, ‘We are all It.’ Like any theory, it deserves to be considered as possibly true. Why not? At this moment in our history, no-one knows ‘the truth’ — if there is such a thing. So if this is what you would like to believe, no-one has the right to contradict you.