At the age of four, I steered a push cart into a ditch and nearly drowned. I only wanted to slow the cart down, and steering off the road into the grassy verge seemed the right thing to do. I had no idea the grass was hiding a watery infant killer. My brother, only a few years older and doing all of the pushing, ran for help, leaving me flailing and gulping water, grasping at the tenuous clump of grass at the water's edge that saved me from a terminal soaking.
I didn't reach for the clump of grass. I didn't even see it. My body did what bodies do when panic takes over: it thrashed and grasped indiscriminately. Wild flailing is variability taken up as a last resort, and it is far older than any of us. When conditions worsen, our least favourite stomach bug E. coli stops swimming in straight lines and starts tumbling at random, not that we should pity its predicament. A pursued hare zigzags. An animal whose learned routine suddenly stops working begins to vary its behaviour before it gives up. Random behaviour of this sort works because it tests the surroundings quickly and widely, and somewhere in the scatter is sometimes a lifeline, a clump of grass, a foothold, another's hand. Enough of our ancestors survived this way that the disposition to flail was passed on. It is neither a skill nor a mistake, since there is no aim for it to miss. It is what life does when the threat or predicament is overwhelming.
I've been thinking about that watery ditch since attending a philosophy seminar on illusionism and AI consciousness, and I'll come back to the seminar. But first, a drawing class.
Life lines
The day before the seminar, two colleagues and I were teaching drawing to a large group of second-year Fine Art students. What strikes me repeatedly is how rarely students consider the quality of the lines they make. Their criterion of success is accuracy, usually meaning something close to what a camera would record. I can't claim to have been any different as a student. The weight, cadence, sensitivity and refinement of a line, and its fitness for what it describes: all of that barely figures when accuracy is pursued so exclusively. We have to keep insisting on the quality of the line, and a worry often surfaces: the wavering line, whose shaky imprecision students tend to treat as a weakness, a failing, a demonstration of error. I sometimes find myself saying: you're not cameras, you're not robots, you're human, and your imperfections are part of what makes your drawings yours. Accuracy is often important, but a good drawing makes clear that its wavering is a feature, not a bug: an opportunity for distinctiveness and disciplined control with its own unique character. In many ways cameras free artists from the burden of record-making and open a space for other qualities of drawing to be explored and valued. Odd, then, that so many students still measure their drawings against the authority of the lens.
Drawing from observation balances accuracy on one side against something much closer to handwriting on the other. The tremors, hesitations and small corrections of a living hand are shaped by skill, never entirely removed. A good line carries a record of its own making: a journey of adjustment and accommodation, open to the vicissitudes of chance. The tradition has a couple of somewhat obscure names for this. Pentimento or palimpsest are occasionally used to refer to the corrections left visible, like the searching lines in Giacometti or the ghost limbs in Rembrandt and Degas, kept because the artist saw that they belonged, or at least that they did no harm.
Is this about style then? Not quite. Artists tend to distrust the word "style," perhaps for the same reasons as Charles Rennie Mackintosh, who famously penned the above warning: "There is hope in honest error, none in the icy perfections of the mere stylist." Yet we all recognise a signature style in the work of others, and we often value it. What matters is where it comes from, its authenticity. A signature grows out of a particular body's variability, shaped by life and disciplined over years of practice but also inescapably unique and unalterable (in a way that isn't always welcome). It turns up in the work whether you literally sign it or not. It is partly beyond us, and that is what makes its honesty real. The mere stylist applies the look of a signature from outside and can take it off again, like someone who switches accents to suit the company, unaware of how suspicious it can appear. Software that adds a hand-drawn wobble to a vector line is the modern version: the appearance of tremor with no tremor behind it. Icy error.
Kinds of error
Mackintosh's word "honest" perhaps implies a genealogy of error.
Flailing comes before error altogether: inherited variability under threat, with no aim to miss.
Honest error is a skilled attempt that goes wrong in a way that can be caught and learned from. Joseph Priestley isolated oxygen while calling it "dephlogisticated air." He made an important discovery inside a mistaken, and almost unpronounceable, theory, and the experiments that theory prompted eventually exposed it. Students make honest errors every day, and most of what they learn comes from how they negotiate these challenges.
Harder to see is what we could call captive error, or perhaps misfounded error, since the fault lies in the foundations and not in the work built on them. It is the error of skilled, sincere people working inside a set of assumptions they have come to regard as indisputable, as given, as nature. Theories of perception have long treated lens projection, whether in the camera obscura, the retina or the photograph, as settled evidence of what we see. From there it was a short step to the prejudice, repeated by Piaget and countless teachers since, that children and the members of ancient or isolated cultures draw "what they know, not what they see." We don't see in two dimensions. Translating what we see onto a flat surface is one of the hardest things an artist ever learns, and the painters who developed perspective knew this better than anyone.
Finally there is icy error, Mackintosh's target: error polished until it becomes frictionless and where correction can seem like an unwarranted affront.
Roots that come away
Carrying all this over from drawing to science and philosophy isn't straightforward, but what concerns me most here is what any discipline takes as being foundational. A wavering line is often a virtue in a drawing because drawing seeks, in part, to show us: the hand, the distilled presence of the maker. Science seeks to show what holds in spite of us. Philosophy sits somewhere between the two. It concerns itself with science, but also with ethics, art and how to live, where we ourselves are very much the subject but where form as such can be a stylistic distraction.
That doesn't mean philosophers should write like machines. Some, J. L. Austin and Gilbert Ryle among them, have a voice you would recognise anywhere, with a dry wit that reminds me of the television comedy of my childhood, Ronnie Barker's especially. That isn't mere stylish decoration. Finding the right form for a thought is part of thinking it, and a well-placed joke about ordinary words can expose a confusion faster than a page of argument. The trouble comes when style strays into the wrong place. Lyricism can illuminate an ethical question. In a theory of the brain it can only mislead, because there the question is whether our concepts fit what holds in spite of us. Metaphor is lyricism's natural medium, and a metaphor read literally is like a wavering line mistaken for the edge of the thing it describes.
Once a matter is settled, loose talk does little harm. We still speak of the sun rising, and nobody is misled. But where the foundations are the very thing in question, loose talk is the hazard, the watery ditch. Using a word like "representation" as promiscuously as the field does means building on exactly the ground that most needs careful surveying.
None of this means that scientists and philosophers should never speculate naively or grasp blindly in the darkness. In an entirely new territory, searching and floundering are exactly right until some points or certainty can be grasped, just as the first marks of a drawing are properly a tracery of tentative lines. But once you've learned at least to tread water, you're better off trying to swim, even if resorting to wild flailing sometimes stirs up unexpected insights. The risk of drowning is too high, especially when you have a genuinely better way, not only to survive but to discover subtleties and truths that undisciplined thrashing can never bring to light.
The seminar
This brings me back to the seminar, where I heard Joe Cruz give a thoughtful and open-hearted defence of illusionism: the view that consciousness is a kind of illusion produced by our inability to represent our own fine-grained processing. It came with the suggestion that machines might one day be conscious in just the same way. I disagreed with nearly all of it, but the error, if I'm right, is captive or misfounded error, not dishonest error, and that is what interests me here.
Mainstream cognitive science and philosophy of mind work inside an overarching picture of representation. They take it for granted that brains encode data, infer, predict and represent. Neurons process and carry information. These are metaphors borrowed from highly sophisticated public practices of picturing, writing and signalling, and applied literally to our inner workings. In a sense, this is lyricism on the scientific line, style intruding where precision would be more appropriate and is most needed. Behaviourism at least attributed thinking and feeling to whole organisms, not to their parts, their organs, synapses and cortices. What replaced it moved the mind back inside and installed it in the parts. The ghost in the machine wasn't exorcised. It was downsized and multiplied, until the brain became a crowd of little ghosts: neurons that signal, modules that infer, systems that represent. To philosophers and thinkers of my bent, that is a profound and costly mistake.
Physicalism came up several times in the talk and afterwards in the discussion. Contemporary philosophers are clearly anxious to keep woo out of their theories. I wish they could see that representationalism is the new woo. Those little ghosts need a better account than representationalism can give them. Nobody thinks that imagining dancing requires an inner dance, so there is no reason to suppose that representing requires inner representations. The absurdity doesn't vanish because the components are modelled as ghostly little abstractions. Had I counted how often the word "representation" was used during the talk, the tally would have looked less like a technical term than a tic, and obsession is the tell of severe error in any domain.
To be fair, the talk invited us to be doubtful about its conclusions, and I didn't hold back in communicating the view that representation is an activity that only has a place in the negotiation between perceivers, not in their inner machinations. When I asked what P.M.S. Hacker might make of the Hard Problem of consciousness, Cruz candidly admitted that it had been a long time since he'd read any Hacker. The candour does him credit, but it left the view badly exposed. Hacker's work is the most sustained critique of exactly the presuppositions the talk relied on, and no amount of declared doubt makes up for passing over your strongest critics.
I also pointed out that philosophy has no consensus on what representations are, and Cruz agreed. That is a remarkable admission from a view that finds representations everywhere, in cortices, in babies and even in cows. Ronnie Barker would be quick to quip that's moos with woos. Science doesn't proceed by ignoring prior insight, yet contemporary philosophy regularly treats hard-won insights from within its own domain as though they were theories, as interchangeable as Lego bricks. That's a genuine problem when the question of what representations are gets treated as either too obvious (they're just stand-ins), too basic (we have bigger fish to fry) or too pernickety to deserve attention, with all that fuss about transparency, illusion, resemblance, likeness, symbolisation, normativity, ofness and aboutness. When he tried to say what he meant, Cruz reached for "aboutness" and "reference." But these are the categories of words and symbols, and they fit pictures badly. A photograph doesn't depend on reference to be of anything, and what it is of is distinct from what it is about. We can argue until the moos come home about what a photograph is about, but what it is of usually needs no interpretation at all. An account of representation built from the vocabulary of language can't get the photograph right, let alone the cow.
I know I must seem arrogant in rooms like that. The philosophers there freely admit that their theories are theories, and I suspect they take me to be in the grip of a theory of my own. What I have is closer to an observation, something I can show and practice every day: someone making or using one thing to stand in for another, for someone else to see or sense. Donald Brook's account sets this out with far more care than I can here, but his three modes of matching, simulating and symbolising provide a far more firm starting point than reference and aboutness. Wittgenstein thought that philosophy should offer reminders of what we already know, not theories, so that if it ever advanced theses, they would be beyond debate because everyone would agree with them (PI §128). That is the kind of certainty I mean, the ordinary certainty with which any of us can say what a map, a portrait or a pointing finger is. If physicalism is to stand in good stead, philosophy first needs to agree on what representations are, and what they are not. Moreover it needs to acknowledge that representing is a social activity and we have no more reason to attribute it to organs than planets.
It was telling that one of the philosophers present (FM) remarked in the discussion that the talk had dented her low opinion of illusionism a little, mostly because it was so well presented. Style persuaded where the concepts didn't.
Afterwards, a PhD student working on anti-representational themes made the fair point that cognitive science is making real progress despite its faulty foundations. I don't doubt it. The cart genuinely slowed a little when I steered onto the grassy verge. But we can't know ahead of time how consequential our errors will be, which is precisely why the much more public debate about AI is such a concern. The same foundations are bearing a great deal more weight there, and the ditch may be a good deal deeper.
Cruz's suggestion was that AI perhaps need only be embodied to be conscious. That's just one example of how much weight representation is made to bear, or believed to sustain. My view is far more demanding and I'm sure I'm not alone in this. The flailing in the ditch was an inheritance, handed down by countless ancestors for whom it sometimes made the difference, and consciousness belongs to creatures with that kind of history: members of a species, with something at stake. A system with nothing at stake has no survival instinct to override its programming when it's thrown in the ditch. Programming artificial instincts into an embodied AI, while no doubt possible, would be icy perfection not raw embodiment, nor the most urgent expression of what it is to be a living creature. Tools are refined by their makers; they don't evolve on their own or their species' behalf. A robot body would give AI the appearance of greater autonomy, but no lineage to be heir to and no ecological adaptability honed by eons of the most uncompromising Darwinian selection.
Wittgenstein wrote in the Tractatus (6.52): "We feel that even when all possible scientific questions have been answered, the problems of life remain completely untouched. Of course there are then no questions left, and this itself is the answer." The so-called "hard problem of consciousness" reads this backwards. It treats what is left untouched as a further scientific question awaiting an answer. What is untouched belongs to the drawing, the clump of grass, and the living line, and there is greatest hope in the honest errors we make there.
The seminar referred to above: Joe Cruz (Williams College, Philosophy and Cognitive Science), "Illusionism and Artificial Consciousness," Philosophy, Psychology, Neuroscience research seminar, Reid Seminar Room, Philosophy, University of Glasgow, 25 September 2026.