'Because neurology is a natural science,' he replied after a glutinous cough. 'It looks at human behavior and consciousness as natural processes like any other process in the natural world. It actually provides causal explanations for what we are.'
'And psychology doesn't?''Not really, no. Psychology also involves something called "intentional explanations", which are pretty tricky from a scientific point of view.' He found himself breathing deeply, as though steeling himself for some arduous task. 'For instance, why did you take a sip of your beer just now?'
Samantha frowned, shrugged. 'Because I wanted to,' she said lamely.
'There you go. That's an intentional explanation. A psychological explanation. This is largely how human beings explain and understand themselves: in terms of intentions, desires, purposes, hopes, and so on. We use intentional explanations.'
'And they're not scientific?'
Her foot brushed his leg and a jolt passed through him. She was just kicking off her shoes, he realized.
'Not comfortably,' he replied, 'no. Before science, we largely understood the world in intentional terms. From the dawn of recorded history pretty much all of our explanations of the world were psychological. Then along comes science and bang: where storms were once understood in terms of angry gods and the like, they're understood in terms of high pressure cells and so on. Science has pretty much scrubbed psychology from the natural world.'
The disenchantment of the world. In his classes Thomas was always at pains to convey just how extraordinary this transformation was—is. Homeric Greece, Vedic India, biblical Israel: in terms of structure, these worlds were cut from the same cloth as Tolkien's Middle-earth. Sanctioned by tradition, yes, anchored in the assent of masses, certainly, but projections of human conceit all the same. Magical. What fact could be more extraordinary? The entire human race had spent the bulk of its tenure living in various fantasy worlds, pleading, kneeling, murdering, avenging, all in the name of make-believe. The whole of humanity deluded. And if Neil was right, precious little had changed.
'Until science,' he continued, 'we humans really had no way of distinguishing good claims from bad claims outside of tradition and self-interest. So why not confabulate? Make stuff up? Why not elaborate belief systems that cater to our vanity, to our need to keep everyone in line? It's no accident we've cooked up thousands of different religions, each peculiar to some distinct culture.'
Sam paused to take a drink, and to reorient herself, Thomas supposed. 'So then why have I always thought psychology was a science?'
'Because it is, in a sense. It uses many of the same tools and standards. It proceeds by hypothesis. The problem lies primarily in its subject matter.'
'The mind.'
'Yep. To put it bluntly, the mind's, well, spooky. The ancient Greek roots of "psychology" are psūkē and logos, literally "the discourse of the soul". The roots of "neurology", on the other hand, are neuron and logos, or "the discourse of the sinew". This pretty much sums up the crucial difference: neurology deals with the mechanics of the meat, whereas psychology deals with the syntax of the ineffable. You tell me which is more scientific.'
'Remember how I said science had scrubbed the world of purpose? For some reason, wherever science encounters intention or purpose in the world, it snuffs it out. The world as described by science is arbitrary and random. There's innumerable causes for everything, but no reasons for anything.'
'The "will of God" or what have you is indistinguishable from dumb luck. That's why car insurance companies don't give a damn how much you pray—let alone to whom. It often seems otherwise, but once you factor in our penchant for self-serving interpretation and cherry-picking, it becomes painfully clear that we're deluding ourselves.'
'You mean with religion?'
Thomas paused over his beer. People were painfully credulous, capable of believing anything. And once they did believe, they had innumerable strategies for skewing and dismissing, all the while convinced they were the most open-minded and even-handed person they knew. They rewrote memories. They made up rationalizations, then believed them with religious conviction. When they didn't miss counter-evidence altogether, they warped it into further proof of their own cherished views. The brain was a spin doctor, plain and simple. The experimental evidence for this was out and out incontrovertible, but thanks to a culture bent on pseudo-empowerment, scarcely a peep could be heard above the self-congratulatory roar. Nobody, from truck drivers to cancer researchers, wanted to hear how self-absorbed and error-prone they were. Why bother with a scientific tongue-lashing when you could have a corporate hand-job?
'Everyone thinks they've won the Magical Belief Lottery, Agent Logan.'
'Which is?'
He nodded at the parade of passers-by beyond the plate-glass window. 'Everyone thinks they more or less have a handle on things, that they, as opposed to the billions who disagree with them, have somehow lucked into the one true belief system.'
Her face crooked into a rueful smile. 'I've seen my fair share of delusions, trust me. The people we hunt burn them for fuel.'
'Not just the people you hunt, Agent Logan. All of us.'
'All of us?' she repeated. Something about her tone told Thomas that the distinction between her and her quarry was important to her. No surprise there, given the things she must have witnessed over the years.
He leaned back, holding her gaze. 'You do realize that every thought, every experience, every element of your consciousness is a product of various neural processes? We know this because of cases of brain damage. All I have to do is press a coat hanger past your eye, wriggle it around a little, and you'd be utterly changed.' This description never failed to provoke expressions of disgust in his classroom, but Agent Logan seemed unimpressed.
'So?'
'You're right. In a sense it's a trivial point. Every time you take an aspirin you're assuming you're a biomechanism, something that can be tweaked with chemicals. But think about what I said. Your every experience is a product of neural processes.'
'I'm not following you, professor.'
Thomas hooked his shoulders and palms in a professorial you're-not-going-to-like-this gesture. 'Well, how about free will? That's a kind of experience, isn't it?'
'Of course.'
'Which means free will is a product of neural processes.'
A wary pause. 'It has to be, I guess.'
'So then how is it free? I mean, if it's a product, and it is a product—I could show you case studies of brain damaged patients who think they will everything that happens, who think they command the clouds on the horizon, the birds in the trees. If the will is a product of neural functioning then how could it be free?'
She gasped and said, 'I just chose to drink, didn't I?'
'I don't know. Did you?'
For the first time her face crinkled into a look that was openly incredulous. 'Of course. What else could it be?'
'Well, as a matter of fact—fact, unfortunately, not speculation—your brain simply processed a chain of sensory inputs, me yapping, then generated a particular behavioral output, you drinking.'
'But…' She trailed.
'That's not the way it feels,' Thomas said, completing her sentence. 'It's pretty clear that our sense of willing things is… well, illusory. It started with a variety of experiments showing how easy it is to fool people into thinking that they're willing things they actually have no control over. That laid the groundwork. Then, when the costs of neuro-imaging began to plummet—remember all the hoopla about low-field MRIs several years back?—more and more researchers demonstrated they could actually determine their subject's choices before they were conscious of making them. Willing, it turns out, is an addon of some kind, something that comes to us after the fact.'
Now she seemed genuinely troubled. Thomas had seen the same look on a thousand undergraduate faces, the look of a brain, Neil would have said, at odds with itself—one whose knowledge could not be reconciled with its experience.
The brain, it turned out, could wrap itself around most everything but itself, which was why it invented minds… souls.
'But that can't be…' Sam started. 'I mean, if we don't really make choices, then how could…'
Thomas grimaced in sympathy. 'How could anything be right or wrong? Good or evil?'
'Exactly. Morality. Doesn't morality mean we have to have free will?'
'Who said morality was real?'
She worked her bottom lip for a moment, then added, 'Bullshit. It's gotta be…'
'I mean, I make decisions, all the time.'
She was arguing now, Thomas realized, not simply entertaining academic claptrap for the purposes of tracking down Neil. The Argument had a way of doing that to people. He could remember the horror it had engendered in him years ago in Skeat's class. The sense that some kind of atrocity had been committed, though without date or location. More than a few times he and Neil had made the mistake of debating it while catastrophically stoned—a mistake for Thomas, anyway. He had simply sat rigid, crowded by paranoias, his eyes poking and probing the tissue that had once been his thoughtless foundation, while Neil had laughed and chortled, pacing the room as if it were a cage. Thomas could see him, hair askew, ducking to peer into his face. 'Whoa, dude… Think about it. You're a machine—a machine!—dreaming that you have a soul. None of this is real, man, and they can fucking prove it.'
Thomas rubbed his eyes. 'In controlled circumstances, researchers can determine the choices we make before we're even conscious of making them. The first experiments were crude and hotly contested—pioneered by a guy called Libet. But over the years, as techniques improved and the fidelity of neuro-imaging increased, so did the ability to pin down the precursors of decision making. Now…' Thomas trailed with an apologetic shrug. 'What can I say? People still argue, of course—they always will when it comes to cherished beliefs.'
'Free will is an illusion,' Sam said in a strange tone. 'Even now, everything I'm saying…'
Thomas swallowed, suddenly apprehensive. He had been carefully folding his napkin as he talked; now he set it like a tiny white book on the table before him. 'Only a small fraction of your brain is involved in conscious experience, which is why so much of what we do is unconscious. The bulk of your brain's processing falls outside what you can experience; it simply doesn't exist for your consciousness, not even as an absence. That's why your thoughts simply come out of nowhere, apparently uncontrolled, undetermined… Yours and yours alone.'
Samantha yanked her hands out in a warding gesture, shook her head. 'Come on, professor, this is just too crazy.'
'Oh, it goes deeper, trust me. Everything falls apart, Agent Logan. Absolutely everything.'
Sam watched the streamers of bubbles in her beer. 'So it has to be wrong, doesn't it?'
Thomas simply watched her.
'Doesn't it?' she repeated, her tone somewhere between wonder and irritation.
He shrugged for what seemed the hundredth time. 'Free will is an illusion, that much is certain. As for other psychological staples like the now, selfhood, purpose, and so on, the evidence that they are all fundamentally deceptive continues to pile up. And if you think about it, perhaps this is what we should expect. Consciousness is young in evolutionary terms, a jury-rigged response to a perfect storm of environmental circumstances. We're stuck with the beta-version. Less even. It only seems slick because it's all we know.'
'You mean,' Sam said drily, 'as far as science is.concerned.'
Thomas took a long drink, exhaled heavily out his nose. In his freshman classes, attacking science was hands down the most common response to the threat posed by the Argument—as well as the weakest.
'And science is a mess, sure. But it's the only mess in recorded history that has had any success at generating and deciding between theoretical claims—not to mention making everything around us possible as a result. In historical terms, it is absolutely unprecedented. What are you going to believe? A four-thousand-year-old document bent on tribal self-glorification? Your own flattering intuitions on the fundamental nature of things? Some hothouse philosophical interpretation that takes years of specialized training just to understand? Or an institution that makes things like computers, thermonuclear explosions, and cures for small-pox possible?'
Samantha Logan stared at him for a long and lovely moment. Someone jacked up the volume on the flat-screen above the bar. A silky whisper fanned across the tables, extolling the wonders of Head & Shoulders.
'Because when your hair shines, you shine…'
'But there're truths outside of science.'
'Are there? I mean, there's a lot of non-scientific claims floating around, that's for sure. But truths? Is the Bible more true than the Quran? Is Plato more true than Buddha? Maybe, maybe not. The fact is we have no way of knowing, even though billions of us jump up and down screaming otherwise. And the more science teaches us, the more it seems we're just duping ourselves altogether. Our internal yardstick is bent, Agent, we know that for a fact. Why should we trust any of our old measurements?'
Most people simply nodded and dismissed the Argument. Most people found their fables too flattering to seriously challenge. A thousand sects, cults, religions, and philosophers agreeing on nothing, and yet each thought their ticket held the winning number of beliefs. Why? Because they held it. Somehow their personal experience of speaking in tongues, of remembering past lives, of having this prayer answered or that premonition come true was the only experience that mattered, the only one that made true…
So few could crawl into the Argument's belly and truly comprehend. The trick was crawling back out again.
'You know how many religions we humans have cooked up over the ages? Thousands… Thousands! Doesn't that worry you? Embarrass you? Think of that feeling you have, that sense of self-righteous indignation that you're struggling to hold onto right now, that you're using to squash the fact of your confusion and fear. I hate to break this to you, buddy, but it's as cheap as fucking dirt. Everybody uses it. Everybody thinks the great captain in the sky has picked them for the winning team, and why not? In the absence of evidence, all we have is our psychology, our needs, to anchor our beliefs. To feel safe. To feel special. You can stomp your foot all you want, wave your hands, pray and pray and pray, but in the end, you're just one more fucking Christian-Muslim-Hindu-Buddhist-Jew, just another hapless, dim-witted human, crying out, "Me-fucking-me-me! I'm the special one!"'