Peirspicacity

Self is arrayed as the whole world.
— Dogen, Uji (Cleary 1986, 345)

What you are aware of, mindful with, is the entire universe, as far as you are presently concerned. Can you point out one thing in the universe that you are not aware of?

No, but you can surely think of things or events that you became aware of, things that surely existed before you were aware of them, events that you did not foresee, places you have never been, situations that did not concern you at the time.

So you are aware that there is more to the universe than you are now aware of, or will ever be aware of. You also know that some of your beliefs about it have turned out to be wrong, which leads you to believe that some of what you now “know” may also be wrong. The universe of your awareness is infinitely incomplete. Does that concern you?

Charles S. Peirce was thinking along these lines in 1913, a few months before his death, when he wrote that

what I am aware of, or, to use a different expression for the same fact, what I am conscious of, or, as the psychologists strangely talk, the “contents of my consciousness” (just as if what I am conscious of and the fact that I am conscious were two different facts, and as if the one were inside the other), this same fact, I say, however it be worded, is evidently the entire universe, so far as I am concerned. At least, so it would seem. Yet there is a wonderful revelation for me in the phenomenon of my sometimes becoming conscious that I have been in error, which at once shows me that if there can be no universe, as far as I am concerned, except the universe I am aware of, still there are differences in awareness. I become aware that though “universe” and “awareness” are one and the same thing, yet somehow the universe will go on in some definite fashion after I am dead and gone, whether I shall be the least aware of it, or not.
— Peirce, EP2:472
Life flows on within you and without you.
— George Harrison, 1967

Charles Peirce and George Harrison are both dead and gone now, and life flows on without them. It flows within you too, the little current of awareness, the entire universe as far as you are concerned, but a drop in the Big Current of Okeanos. The bubble of what you know embodies your concerns, and though it’s only made of surface tension, there’s no getting out of it while you live. At best you can take in the odd bit from beyond the barrier to make it a little bigger.

Peirce was thinking about this too toward the end of his life:

… I was many years ago led to define “real” as meaning being such as it is, no matter how you, or, I, or any man or definite collection of men may think it to be; where I use the long and awkward phrase in order to avoid all appearance ​of meaning ​independently of human thought. For obviously, nothing that I or anybody ever can mean can be independent of human thought. That is real which men would eventually and finally come to think to be absolutely necessary to be thought in order to understand the truth, supposing the existence and advance in knowledge of the human race to be continued without any limitation, though I cannot pretend that I have as distinct an idea of exactly what that means as I could wish. But, alas, there seems to be a principle as inexorable as that of action and reaction condemning those creatures who enjoy the privilege of perpetually learning to find their outlook forever confined within a sharply drawn horizon, a confinement the more exasperating for the fact that they have only to exert themselves sufficiently in order to enlarge it while leaving it still a prison-wall.
— Peirce (R 681: 35–36, 1913) quoted by Lane (2018, 193-4)

What does it mean to suppose ‘the existence and advance in knowledge of the human race to be continued without any limitation’? Certainly not to believe that human life will never end, or that human knowledge will be forever advancing. It means to imagine what it would take for humans to finally ‘understand the truth,’ knowing the finality to be imaginary.

As for the little current, what does it mean to suppose you’ve been selected for a secret mission? It means to imagine that your life has a definite purpose. Why would you do that?

Gut feelings

In the early stages of writing my book Turning Signs, i was very strongly moved by the realization that the world is inside out – that the whole of your experience of the world is something going on in your brain. This activity is taking place at the cellular and subcellular levels, and not until the 20th Century was it possible to investigate in detail how these microcosmic processes actually work to generate our thoughts and feelings. More recently we are learning that the brain is only part of this microcosm.

At the same time, we have been developing the technology to explore the macrocosm, the vast reaches of the physical universe. This development began 400 years ago with the first telescope, but it was only 100 years ago that we recognized the existence of other galaxies far beyond our own. Our knowledge, our cognitive universe, has been expanding both inwards and outwards toward the micro- and macroscopic limits of our augmented perception. Our comprehension of time has also expanded in scale, in both directions: we have begun to appreciate how much can happen in a millisecond, and how long it takes the light from a distant galaxy to reach us. Our moment in cosmic time is marked by a wonderful flowering of the imagination.

Returning to the microscopic scale, this excerpt from a recent Science magazine article is a good example of that flowering:

Over the past 20 years, the recognition that the microbes living inside us outnumber our body’s own cells has turned our view of ourselves inside out. The gut microbiome, as it’s known, weighs about 2 kilograms— more than the 1.4-kilogram human brain— and may have just as much influence over our bodies. Thousands of species of microbes (not only bacteria but also viruses, fungi, and archaea) reside in the gut. And with as many as 20 million genes among them, those microbes pack a genomic punch that our measly 20,000 genes can’t match. Gut bacteria can make and use nutrients and other molecules in ways the human body can’t— a tantalizing source of new therapies.

The brain is the newest frontier, but it’s one with an old connection to the gut. The ancient Greeks, for example, believed mental disorders arose when the digestive tract produced too much black bile. And long before microbes were discovered, some philosophers and physicians argued that the brain and gut were partners in shaping human behavior. “What probably happens is that our brain and our gut are in constant communication,” says [John] Cryan, who over the past decade has helped drive efforts to decode those communications.

—Elizabeth Pennisi, “Meet the Psychobiome” (Science, 8 May 2020, Vol. 368 Issue 6491, p. 571)

John Cryan is a neuropharmacologist at University College Cork. He and a psychiatrist colleague, Ted Dinan, coined the term “psychobiotics” for the new field of research into microbe-based treatments for mental illnesses. No doubt this research is being funded by an industry hoping for profits down the road, but it contributes nonetheless to the flowering of imagination that “has turned our view of ourselves inside out.” In 2020, the virus which has turned our daily lives upside down should only add to our respect for life at the micro-scale and its effect on our human-scale lives.

On the other hand, our growing ability to conceive of (and measure) vast differences of scale in space and time is still rooted in the human scale of experiencing. We know much more about past events than we do about the future, but the past is no more present to us than the future. What is present to us is the remains of the past, the traces of what’s happened, the signs we can read in order to imagine our planet’s history with some degree of accuracy. In the same way, by reading what is present to us and puzzling out some reasons why it is the way it is, we imagine the future with some degree of plausibility.

Our ability to imagine the deep-time context of the present moment enables us to feel its presence all the more deeply. That’s the gift of this brief moment in the history of the universe. But our acceptance of this gift, our experience of it, seems to depend on the myriads of microbes inhabiting the psychobiome. We begin to see with our high-power microscopes how much of our mental life we owe to gut feelings.