For several months, a friend and I have volleyed emails about a sprawling essay on consciousness, free will, and literature.
The essay will explore the idea that humans feel we have free will because our conscious mind grafts narrative explanations (“I did this because…”) onto our actions. It seems quite clear that our conscious minds do not originate all the choices that we then take credit for. With an electroencephalogram, you could predict when someone is about to raise an arm, for instance, before the person has even consciously decided to do so.
Which is still free will, of course. If we are choosing an action, it hardly matters whether our conscious or subconscious mind makes the choice. But then again, we might not be “free.” If an outside observer were able to scan a person’s brain to sufficient detail, all of that person’s future choices could probably be predicted (as long as our poor study subject is imprisoned in an isolation chamber). Our brains dictate our thoughts and choices, but these brains are composed of salts and such that follow the same laws of physics as all other matter.
That’s okay. It is almost certainly impossible that any outside observer could (non-destructively) scan a brain to sufficient detail. If quantum mechanical detail is implicated in the workings of our brains, it is definitely impossible: quantum mechanical information can’t be duplicated. Wikipedia has a proof of this “no cloning theorem” involving lots of bras and kets, but this is probably unreadable for anyone who hasn’t done much matrix math. An easier way to reason through it might be this: if you agree with the Heisenberg uncertainty principle, the idea that certain pairs of variables cannot be simultaneously measured to arbitrary precision, the no cloning theorem has to be true. Otherwise you could simply make many copies of a system and measure one variable precisely for each copy.
So, no one will ever be able to prove to me that I am not free. But let’s just postulate, for a moment, that the laws of physics that, so far, have correctly described the behavior of all matter outside my brain also correctly describe the movement of matter inside my brain. In which case, those inviolable laws of physics are dictating my actions as I type this essay. And yet, I feel free. Each word I type feels like a choice. My brain is constantly concocting a story that explains why I am choosing each word.
Does the same neural circuitry that deludes me into feeling free – that has evolved, it seems, to constantly sculpt narratives that make sense of our actions, the same way our dreams often burgeon to include details like a too hot room or a ringing telephone – also give me the ability to write fiction?
In other words, did free will spawn The Iliad?
The essay is obviously rather speculative. I’m incorporating relevant findings from neuroscience, but, as I’ve mentioned, it’s quite likely that no feasible experiments could ever test some of these ideas.
The essay is also unfinished. No laws of physics forbid me from finishing it. I’m just slow because K & I have two young kids. At the end of each day, once our 2.5 year old and our 3 month old are finally asleep, we exhaustedly glance at each other and murmur, “Where did the time go?”
But I am very fortunate to have a collaborator always ready to nudge me back into action. My friend recently sent me an article by Tim Christiaens on the philosophy of financial markets. He sent it because the author argues – correctly, in my opinion – that for many stock market actions it’s sensible to consider the Homo sapiens trader + the nearby multi-monitor computer as a single decision-making entity. Tool-wielding is known to change our brains – even something as simple as a pointing stick alters our self-perception of our reach. And the algorithms churned through by stock traders’ computers are incredibly complex. There’s not a good way for the human to check a computer’s results; the numbers it spits out have to be trusted. So it seems reasonable to consider the two together as a single super-entity that collaborates in choosing when to buy or sell. If something in the room has free will, it would be the tools & trader together.
Which isn’t as weird as it might initially sound. After all, each Homo sapiens shell is already a multi-species super-entity. As I type this essay, the choice of which word to write next is made inside my brain, then signals are sent through my nervous system to my hands and fingers commanding them to tap the appropriate keys. The choice is influenced by all the hormones and signaling molecules inside my brain. It so happens that bacteria and other organisms living in my body excrete signaling molecules that can cross the blood-brain barrier and influence my choice.
The milieu of intestinal bacteria living inside each of us gets to vote on our moods and actions. People with depression seem to harbor noticeably different sets of bacteria than people without. And it seems quite possible that parasites like Toxoplasma gondii can have major influences on our personalities.
Indeed, in his article on stock markets, Christiaens mentions the influence of small molecules on financial behavior, reporting that “some researchers study the trader’s body through the prism of testosterone levels as an indicator of performance. It turns out that traders who regularly visit prostitutes consequently have higher testosterone levels and outperform other traders.”
Now, I could harp on the fact that we designed these markets. That they could have been designed in many different ways. And that it seems pretty rotten to have designed a system in which higher testosterone (and the attendant impulsiveness and risky decision-making) would correlate with success. Indeed, a better, more equitable market design would probably quell the performance boost of testosterone.
I could rant about all that. But I won’t. Instead I’ll simply mention that Toxoplasma seems to boost testosterone. Instead of popping into brothels after work, traders could snack on cat shit.
On the topic of market design, Christiaens also includes a lovely description of the interplay between the structure of our economy and the ways that people are compelled to live:
The reason why financial markets are able to determine the viability of lifestyles is because most individuals and governments are indebted and therefore need a ‘creditworthy’ reputation. As the [U.S.] welfare state declined during the 1980s, access to credit was facilitated in order to sustain high consumption, avoid overproduction and stimulate economic growth. For Lazzarato [a referenced writer], debt is not an obligation emerging from a contract between free and equal individuals, but is from the start an unequal power relation where the creditor can assert his force over the debtor. As long as he is indebted, the latter’s rights are virtually suspended. For instance, a debtor’s property rights can be superseded when he fails to reimburse the creditor by evicting him from his home or selling his property at a public auction. State violence is called upon to force non-creditworthy individuals to comply. We [need] not even jump to these extreme cases of state enforcement to see that debt entails a disequilibrium of power. Even the peaceful house loan harbors a concentration of risk on the side of the debtor. When I take a $100,000 loan for a house that, during an economic crisis, loses its value, I still have to pay $100,000 plus interests to the bank. The risk of a housing crash is shifted to the debtor’s side of the bargain. During a financial crisis this risk concentration makes it possible for the creditors to demand a change of lifestyle from the debtor, without the former having to reform themselves.
Several of my prior essays have touched upon the benefits of a guaranteed basic income for all people, but I think this paragraph is a good lead-in for a reprise. As Christiaens implies, there is violence behind all loans – both the violence that led to initial ownership claims and the threat of state violence that compels repayment. Not that I’m against the threat of state violence to compel people to follow rules in general – without this threat we would have anarchy, in which case actual violence tends to predominate over the threat of incipient enforcement.
We all need wealth to live. After all, land holdings are wealth, and at the very least each human needs access to a place to collect fresh water, a place to grow food, a place to stand and sleep. But no one is born wealthy. A fortunate few people receive gifts of wealth soon after birth, but many people foolishly choose to be born to less well-off parents.
The need for wealth curtails the choices people can make. They need to maintain their “creditworthiness,” as in Christiaens’s passage, or their hire-ability. Wealth has to come from somewhere, and, starting from zero, we rely on others choosing to give it to us. Yes, often in recompense for labor, but just because you are willing and able to do a form of work does not mean that anyone will pay you for it.
Unless people are already wealthy enough to survive, they are at the mercy of others choosing to give them things. Employers are not forced to trade money for salaried working hours. And there isn’t wealth simply waiting around to be claimed. It all starts from something – I’d argue that all wealth stems originally from land holdings – but the world’s finite allotment of land was claimed long ago through violence.
A guaranteed basic income would serve to acknowledge the brutal baselessness of those initial land grabs. It is an imperfect solution, I know. It doesn’t make sense to me that everyone’s expenses should rise whenever a new child is born. But a world where people received a guaranteed basic income would be better than one without. The unluckily-born populace would be less compelled to enter into subjugating financial arrangements. We’d have less misery – feeling poor causes a lot of stress. We’d presumably have less crime and drug abuse, too, for similar reasons.
And, of course, less hypocrisy. It’s worth acknowledging that our good fortune comes from somewhere. No one among us created the world.