Not only did Newtonian physics assert that we humans play no role in the wholly material, mechanistic universe, but the Western religions also maintain that neither are we any part of Nature. The Western Bible tells us that God created the natural world for our benefit, and gave us domain over all of Nature. Nature is our “resource,” to be used for our own benefit as we think best. This lingering attitude still exists in the minds of many today, including those of many business leaders, and of course underpins the activities that have now led to our climate crisis. But Darwin’s Theory of Evolution challenged it, and the quantum world view asserts very clearly that we are fully part of both the universe and Nature. We can see this very clearly in the “archaeology” of the human brain, the seat of both our personhood and our thinking.
By nature, the brain is quite conservative. It carries the whole history of the evolution of life on this planet within its complex structures. Its architecture is like the twisting alleyways and jumbled buildings of a very ancient city—layer upon layer of archaeological history built one on top of the other and all somehow being “lived in”.
In the simplest layer of our bodily organization,— the part corresponding to the lowest archaeological level of the ancient city—we find structures like those of the single-celled animals, such as amoeba. They have no nervous system; all the sensory and motor functions of these animals exist within one cell. Our own white blood cells, as they scavenge for rubbish and sweep up bacteria, behave in our bloodstreams much like the amoebae in ponds. Simple many-celled animals like jellyfish still have no central nervous system, but they do have a network of nerve fibers that allow communication between cells so that the animal can react to its environment in a coordinated way. In our bodies, the nerve cells in the gut form a similar network that coordinates peristalsis, the muscular contractions that push food along the gut. More evolved animals develop increasingly complex nervous systems.
As evolution progressed, a primitive brainstem developed in the lower skulls of multicelled animals, such as fishes and reptiles. Indeed, the human brainstem is even called the “reptilian brain.” With the arrival of mammals, the brain grew more complex layers,—first the primitive mid-brain of the lower mammals, ruled by instinct, then the midbrain of higher mammals like tigers and wolves, ruled by instinct and emotion, and finally the cerebral hemispheres of the forebrain that we share with the higher monkeys, with their more sophisticated computing ability and increasing social skills. The prefrontal lobes, those “little grey cells” that we identify with the human mind, but shared in their less developed form by the higher apes, have evolved most recently, and are essential to rational ego abilities. Yet drunkenness, the use of tranquilizers, great stress, violent emotion, or damage to the higher forebrain result in regression to primitive, more impulsive, less calculating types of behavior found in lower animals.
So despite the increasing centralization and complexity of the nervous system as it evolves, even in human beings the most primitive nerve nets remain, both within our expanded brain and throughout the body. And we live and think with it all, with the instincts of the snake and the wolf, the emotions of the apes, and on our better days, with the rationality of humans. Yet we share 98% of our genes, our minds, and our emotions with chimpanzees, so at this stage of our evolution, we are only 2% human. It is little wonder then, that we behave irrationally so much of the time, and make such a mess of things! Our computational abilities have now created a highly complex world that has outgrown our own capacity to live in it intelligently.
This presents us all with a personal challenge and a purpose. If just 2% of being human has got us this far, another mere 1% or 2% of brain evolution might make us able to cope with life in the twenty-first century. In terms of natural evolution, that would require tens of thousands of years, but we know now from modern neuroscience that our brains are “plastic,” mutable, changeable. We have the capacity to rewire them and grow them in dialogue with our own thinking and experience. We can speed up our own brain evolution. We can think and experience ourselves “more intelligent,” and the way we manage our companies and other social organizations can contribute to that. I believe that is the promise of “quantum thinking,” and why I hope that at least 10% of those in leadership positions might grow into it. As international law professor Richard Falk expresses it,
The human species has a special co-evolutionary capacity and responsibility. Unlike other species, we are aware of our roles in the world and bare the burdens of awareness…As humans, we can respond to the pain of the world by devoting our energies to various kinds of restorative action, building institutional forms and popular support for a dramatic reorientation of behavior.Footnote 3