RC Practice, Real Aeon Passages

The hard problem of consciousness is a distraction from the real one · Philosophy / Neuroscience

For decades the science of consciousness has been organised around a single intimidating question. The philosopher David Chalmers called it the “hard problem”: why and how does physical activity in the brain give rise to subjective experience at all? Why is there something it is like to see red, to taste coffee, to feel pain, rather than mere information-processing carried out in the dark? Set against this is the so-called “easy problem”, explaining the brain's functions, such as how it discriminates stimuli, integrates information, or reports its own states. The functions look tractable; the felt quality of experience looks like a residue that no account of mechanism could ever capture. The hard problem has come to seem like the gatekeeper to the whole field: until we crack it, the worry goes, we have not really explained consciousness at all.

I want to suggest that this framing has been a costly detour. The hard problem invites two unhelpful responses. One is to throw up our hands and declare consciousness an eternal mystery, perhaps requiring some radical new physics or a retreat into dualism, the idea that mind is simply a different kind of stuff from matter. The other is to deny that there is anything to explain, to insist that subjective experience is some sort of illusion. Neither move does any scientific work. The first stops inquiry before it starts; the second waves away the very phenomenon we set out to understand.

There is a better path, which I call the real problem. Instead of asking how matter conjures the bare fact of experience into being, we should ask a different and far more productive question: how do we account for the specific properties of conscious experiences in terms of biological mechanisms? Why does a particular experience have the precise character it does, this shade of red, this quality of dread, this sense of being a unified self located behind the eyes, rather than some other character, or none? On this approach, we do not pretend the problem away, nor do we treat it as forever beyond science. We treat it as a problem to be chipped at, property by property, just as biology once dismantled the seemingly impassable mystery of “life” into metabolism, reproduction and inheritance.

This shift matters because it turns an unanswerable metaphysical riddle into a research programme. The old vitalists asked what the magical spark of life was; the question dissolved once we could explain the mechanisms that living things actually exhibit. Consciousness, I think, may go the same way. As we build precise explanations of why experiences are structured as they are, why they are integrated, why they unfold in time, why they feel owned by a self, the residual sense that something deep and separate remains unexplained may gradually fade. The hard problem need not be solved head-on. It may simply lose its grip as the real problem yields its answers.

, Anil Seth, Aeon · read the full essay on aeon.co

Time is not an illusion. It's an object with physical size · Physics

Most of modern physics treats time as a kind of stage on which events are arranged, a coordinate, much like the three of space, along which the universe can in principle be read backwards as easily as forwards. The fundamental laws, from Newton's to Einstein's, are nearly all time-symmetric: run the equations in reverse and they remain valid. From this many physicists have drawn a striking conclusion, namely that the passage of time, the felt difference between past and future, is not a feature of reality at all but an illusion produced by human minds. The block universe, in which past, present and future all exist equally and unchangingly, has become the orthodox picture.

We think this orthodoxy is mistaken, and that a new framework, assembly theory, points the other way. Assembly theory was developed to explain why the universe produces objects of staggering complexity, such as living organisms, that would essentially never arise by chance. The key idea is that complex objects cannot simply pop into existence; they must be built, step by step, from simpler parts, and each object carries a kind of minimal history, the shortest number of steps required to assemble it. A protein, a circuit board, a butterfly: each encodes the sequence of operations that produced it. Complexity, on this view, is not a snapshot but a record of construction.

If that is right, then time looks very different. The number of possible objects that can exist grows as the universe builds more complex things upon the things it has already made. The future is not laid out in advance, waiting to be reached; it is genuinely open, expanding as new combinations become possible only after their predecessors exist. In this sense time is not merely a coordinate we move along. It is something more like a material, the stuff out of which complex objects are made, and it has a physical size, measurable as the amount of history an object contains.

This reframing dissolves a long-standing puzzle. Physicists have struggled to reconcile the time-symmetry of fundamental laws with the obvious, irreversible directionality of the world we live in, where eggs break but never unbreak and memories accumulate only of the past. If time is fundamental and directional, if the universe is genuinely constructing its future rather than reading it off a pre-existing block, then directionality is not an emergent illusion to be explained away, but a basic fact about how reality is put together. The arrow of time is real because the building of the universe is real.

The implications reach beyond physics. A universe in which time is fundamental and the future is open is one in which novelty is possible, in which evolution, life and perhaps mind are not improbable accidents within a frozen block, but the natural products of a cosmos that keeps making things it has never made before. To take time seriously as an object, rather than dismissing it as a trick of perception, may be the change of perspective that the science of complexity has been waiting for.

, Sara Walker & Lee Cronin, Aeon · read the full essay on aeon.co

Are humans really blind to the gorilla on the basketball court? · Behavioural science

The most famous demonstration in modern psychology asks you to watch a short video and count how many times players in white shirts pass a basketball. Absorbed in the count, about half of all viewers fail to notice a person in a gorilla suit who strolls into the middle of the scene, thumps their chest, and walks off. The experiment, devised by Christopher Chabris and Daniel Simons, is held up as proof of “inattentional blindness”: the unsettling idea that we miss much of what is right in front of us, and that human perception is riddled with bias and oversight. It has become a parable for an entire research tradition that delights in cataloguing the ways the mind goes wrong.

But the standard moral, I want to argue, is the wrong one. The gorilla study is usually read as showing that people are blind to the obvious. Yet what counts as “obvious” is precisely the question begged. Observers do not register everything in their visual field and then filter; they look for things, guided by what they expect and what they have been asked to do. Tell viewers to count passes and they tune their attention to passes, fast-moving, white-shirted, ball-related events. A gorilla is irrelevant to that task, so it is reasonably ignored. The participants are not malfunctioning. They are doing exactly what good, goal-directed perception is supposed to do: allocate scarce attention to what matters for the question at hand.

This points to a deeper problem with the bias-hunting style of behavioural science. To call an omission an “error”, you must first decide what the observer should have seen, and that judgment smuggles in a theory. The gorilla looks obvious only in hindsight, to someone told in advance that a gorilla is the point. Change the question and the “blindness” vanishes: ask people simply to watch the scene, and they see the gorilla every time. What looked like a defect of the eye turns out to be a feature of intelligent, theory-laden looking. Observation, in other words, is never a passive recording of raw data; it is always shaped by the expectations and purposes the observer brings.

The lesson cuts against a fashionable picture of human beings as bundles of cognitive flaws, forever needing experts to correct their faulty perceptions and decisions. On that picture, the job of behavioural science is to expose how irrational we are. But many of the celebrated “biases” look different once we ask what the person was actually trying to do. Far from being blind, observers are exquisitely selective for good reason: a creature that attended equally to everything would be paralysed. Selectivity is not a bug to be engineered away; it is the very thing that makes seeing useful.

None of this means perception is infallible. We do miss things, and attention can be misdirected. But the gorilla experiment, properly understood, is less a demonstration of human stupidity than a demonstration of how perception works, purposeful, expectation-driven, and tuned to the task. The mistake is not the viewer's. It belongs to the interpreter who assumes there is a single, obvious world that any unbiased eye would simply see.

, Teppo Felin, Aeon · read the full essay on aeon.co

What the idea of civilisational ‘collapse’ says about history · History / Archaeology

Few stories grip us as firmly as the tale of a great civilisation that rose, dazzled and then fell. The Maya abandoning their cities to the jungle, the statue-builders of Easter Island stripping their island bare, the Roman Empire crumbling into a dark age: these are recited as cautionary fables, warnings about hubris, environmental folly and the fragility of human achievement. The appeal of “collapse” is partly the appeal of any good narrative. As storytelling animals we crave arcs with beginnings, middles and ends, and the sudden ruin of a society supplies a satisfying, morally legible conclusion.

But the closer archaeologists and historians look, the less the dramatic picture holds. “Collapse” tends to compress into a single catastrophic moment what was in fact a slow, uneven and often partial transformation. The Classic Maya cities of the southern lowlands were indeed depopulated, yet Maya people, language and culture did not vanish, millions of their descendants live in the region today. Rome did not so much disappear as gradually reconfigure into successor societies, with much of its law, religion and infrastructure carried forward. What we label the end of a civilisation is frequently the reorganisation of one: populations move, elites lose power, monumental building stops, but ordinary life and cultural continuity persist beneath the rubble of the palaces.

Why, then, does the language of collapse exert such a hold? Part of the answer is that it serves the needs of the present. Each generation reads its own anxieties into the ruins. In an age worried about climate change and overconsumption, the Easter Island story becomes a tidy parable of ecological suicide, even though the evidence that the islanders destroyed themselves through deforestation is far more contested than the popular version admits, with disease, slave-raiding and introduced rats all playing a part. The fall of Rome has at various times been blamed on moral decadence, Christianity, lead poisoning and barbarian invasion, depending on what the storyteller most feared. The lesson is suspiciously convenient: the past keeps confirming whatever we already believe.

There is also a politics to the word. To describe a society as having “collapsed” can be a way of writing its survivors out of history, of treating complex peoples as passive victims of forces they failed to master, rather than as agents who adapted, migrated and remade their worlds. The grand narrative of rise and fall flatters the civilisations that tell it, casting others as object lessons in failure while quietly assuming that our own arrangements are more durable.

None of this is to deny that societies undergo profound disruption, sometimes rapid and devastating. Cities are abandoned; states fragment; populations fall. But “collapse” is a frame we impose, not a fact we find, a way of organising messy, continuous change into a clean morality play. If we want to learn anything real from the past, we might do better to ask not why civilisations collapse, but why we are so eager to believe that they do.

, Guy D. Middleton, Aeon · read the full essay on aeon.co

How algorithms are transforming artistic creativity · Art / Technology

It is tempting to imagine the artist as a solitary genius, conjuring work from pure inner inspiration, and to set this romantic figure against the cold machinery of computation. On that view, algorithms, sets of mechanical, rule-following instructions, are the natural enemy of creativity: they can shuffle and recombine, but they cannot truly originate. Yet the history of art tells a more entangled story. Creativity has always depended on constraints, tools and rules. The sonnet's fourteen lines, the rules of perspective, the tempered scale that organises Western music, these are, in a loose sense, algorithms: formal systems that channel imagination rather than smother it. Far from killing creativity, constraints have often been the very thing that provokes it.

What is new is the scale and autonomy of today's computational tools. Generative software can now produce images, melodies and texts that many people cannot distinguish from human-made work, and it can do so by drawing on vast archives of existing culture. This has produced a familiar anxiety: if a machine can compose a passable symphony or paint a plausible portrait, what is left for the human artist? But the more interesting question is not whether machines can replace artists, but how they are reshaping what artists do. Increasingly, the creative act is becoming a collaboration, a dialogue between a human who sets goals, curates outputs and exercises judgment, and a system that proposes possibilities the human would never have generated alone.

This collaboration shifts the locus of creativity. When an artist works with a generative system, originality lies less in the manual production of every brushstroke and more in the framing of the problem, the selection among countless machine-made options, and the taste that decides what is worth keeping. The algorithm widens the space of the possible; the human narrows it toward the meaningful. In this sense the computer does not author the work so much as expand the artist's reach, much as the camera once expanded the painter's, provoking new forms rather than ending the old craft.

Yet there is reason for caution. Generative systems learn from existing material, and so they tend to reflect, and sometimes amplify, the patterns already present in their training data, including its clichés and its blind spots. A tool that produces what is statistically most likely is, by its nature, drawn toward the average, the familiar, the already-seen. Left unchecked, it could nudge culture toward a smooth, homogenised sameness, an endless remix of what has come before. The risk is not that machines will be too creative, but that they will make it too easy to be conventional.

The outcome, then, is not predetermined by the technology. Whether algorithms enrich or impoverish art depends on how artists use them, whether they treat the machine as an oracle to be obeyed or as an instrument to be played, pushed and subverted. The most interesting artists will be those who use these systems against the grain, exploiting their strangeness rather than their fluency. Creativity, in the age of algorithms, becomes less about making marks by hand and more about steering a powerful, indifferent collaborator toward something genuinely new.

, Ed Finn, Aeon · read the full essay on aeon.co

One is the loneliest number: the history of a Western problem · Society / History of emotions

We tend to treat loneliness as a timeless affliction, a permanent feature of the human condition that every age has felt and named. It is striking, then, to discover that the word in its modern sense is surprisingly young. Before around 1800, English speakers used “oneliness” merely to describe the state of being alone, a neutral, even peaceful condition, carrying none of today's freight of suffering. The idea of loneliness as a painful, corrosive lack of meaningful connection, a wound rather than a circumstance, is a modern invention. And inventions have histories.

If loneliness is modern, then its causes are modern too. Its rise tracks the great transformations of the nineteenth century: industrialisation, urbanisation and the new philosophy of individualism. As people moved from villages, where one was embedded in dense webs of kin, parish and obligation, into anonymous cities organised around wage labour, the older sources of belonging frayed. The word “individualism” itself first appeared in the 1830s, and, tellingly, it appeared as a term of disapproval, a name for the worrying new tendency of people to withdraw into private, self-interested lives. The very social order that promised freedom and self-fulfilment also manufactured a new kind of isolation.

A shift in beliefs deepened the change. In earlier centuries, a person alone was rarely thought to be truly alone: God, the saints, the community of the faithful were felt presences, so that solitude could be filled with company of a sort. As secular ways of understanding the self spread, that invisible companionship thinned. The individual came to be imagined as a bounded, self-contained unit, responsible for its own happiness and meaning, and a self conceived that way can experience its separateness as a deficiency, a problem to be solved rather than a condition simply lived in.

Recognising loneliness as historical does not make it any less real or painful for those who suffer it; the ache is genuine, and its links to ill-health are well documented. But seeing it as a product of particular social and intellectual conditions changes how we might respond. If loneliness were an unalterable fact of human nature, we could only endure it. Because it is bound up with how a society is arranged and how it teaches people to understand themselves, it is, at least in principle, something we can address, through the design of cities, the strength of communal institutions, and the stories a culture tells about what it means to be a person.

To call loneliness a modern epidemic, then, is to say something about modernity as much as about lonely people. The same forces that gave the West its prosperity, mobility and prized individual liberty also unpicked the bonds that once held isolation at bay. Loneliness is, in this sense, the shadow cast by our own ideals, and understanding where it came from may be the first step toward imagining a society less prone to producing it.

, Fay Bound Alberti, Aeon · read the full essay on aeon.co