Living in the Gap

How a 1950s psychology theory became a description of the present.

There is a quality to the current moment that most people I speak with seem to recognise, even if they cannot quite name it. A low background hum of unease. A sense that the ground is moving faster than the legs can carry the body. Things one used to feel certain about — about work, about institutions, about how the world fits together — no longer cohere in the way they once did, and the gap between what is true and what feels manageable has widened to the point of strain.

I have come to think this is not, in the main, a personal failing. It is not, in the main, even a generational complaint. It is a structural issue that has been building for a very long time, and we are now living in the steady-state version of it.

The most useful framework I have found for thinking about it pairs two bodies of work that are not normally read together: the long evolutionary account of how human cognition has fallen behind its own environment, and Leon Festinger’s 1957 theory of cognitive dissonance. Each describes a piece of the puzzle. Together, they describe something larger than either accounts for on its own.

The Three Layers of the Adaptation Gap

The brain in your skull is, in evolutionary terms, almost unchanged from the one that walked the African savannah two hundred thousand years ago. It was calibrated for small-band hunter-gatherer life: groups of around 150 people, seasonal rhythms, immediate-return food economies, threats that came in the form of fur and teeth. Once agriculture produced settlements of thousands, dense disease pools, abstract property and written contracts — roughly twelve thousand years ago — the environment had already outrun the genome’s capacity to retune itself. E.O. Wilson’s line on this is hard to improve on: paleolithic emotions, medieval institutions, godlike technology. That divergence is about four hundred generations old. It has been widening ever since.

For most of the intervening period, culture and institutions did the work that biology could not. Language, writing, law, schooling, markets — these are scaffolding. They allowed minds built for one kind of world to function in another. The arrangement worked, more or less, as long as the rate of change in the external world remained slow enough for the scaffolding to keep up.

It is the rate of change that is the second story. Herbert Simon’s work on bounded rationality made the clinical version of the argument: the information relevant to any serious decision had, by the mid-twentieth century, exceeded the capacity of any single mind to process it. Alvin Toffler’s Future Shock, published in 1970, made the popular version: the world an adult retired into would no longer resemble the one they had entered as a young person. Generational transmission of skills, norms, and meaning began to fail. The scaffolding had not collapsed, but it was creaking.

That, I think, is the third layer of the gap, and the one we are still inside. Biology fell behind in the Neolithic. Individual cognition fell behind during the Industrial Revolution. Culture itself — the institutions and shared meanings that had previously absorbed the shock — began falling behind somewhere around the middle of the twentieth century, when novel categories of decision (nuclear policy, global supply chains, ecological tradeoffs, financial derivatives, networked computing, and now machine intelligence) started appearing faster than any society could metabolise them into stable norms.

We have been running on borrowed scaffolding ever since.

What the Gap Feels Like from the Inside

The historical account is correct as far as it goes, but it is missing something important: it does not say what living inside the gap actually feels like. This is where Festinger becomes useful.

Cognitive dissonance, in the original formulation, is the discomfort that arises when new information collides with existing beliefs. The discomfort is not metaphor. It is a real psychological state the mind seeks to resolve, and Festinger described four standard resolutions. One can change the belief to fit the new information. One can add new beliefs that buttress the old one against the new information. One can diminish the importance of the conflicting information. Or one can dismiss the source of that information entirely.

Only the first of these resolutions involves actually updating one’s worldview. The other three are forms of defence. And — this is the crucial part — defence is almost always cheaper than revision. Changing a belief that is woven into identity, profession, relationships, and meaning is expensive. Discrediting the source of the inconvenient information is, by comparison, almost free.

Festinger’s original studies treated dissonance as an episodic event. A subject would be exposed to a piece of information that contradicted a held belief; the mechanism would activate; the resolution would follow; equilibrium would return. The framework assumes a baseline of cognitive coherence, with dissonance as the disturbance.

What happens when the disturbance becomes the baseline?

When Dissonance Becomes the Operating Condition

This is, I think, the actual phase shift we are living through. The adaptation gap has now widened to the point that the information environment is producing dissonance faster than any individual mind can resolve it. The mechanism Festinger described — designed to manage occasional conflicts between belief and reality — is now under continuous load.

When dissonance is continuous, the lowest-energy resolutions become the dominant ones. We do not, at scale, update our worldviews. We add buttressing beliefs. We discount the importance of conflicting evidence. We discredit the sources that produce it. And we do these things not because we are stupid or dishonest, but because the alternative — continuous belief revision at the pace the environment now demands — exceeds the cognitive budget of any normal life.

Three terrains where this is now visible at civilisational scale, I think, are worth naming.

The first is politics. What is read as polarisation is in part a sorting of people by which defensive resolution they have adopted. The information environment is producing more dissonance than can be metabolised, so subgroups settle on which sources to trust and which to dismiss, which evidence is important and which is noise. The arguments are not really arguments. They are negotiations over which defensive resolution gets to be authoritative.

The second is institutions. A large institution cannot acknowledge that its founding assumptions have been outrun by reality without dissolving the basis of its own authority. So it does, at the institutional level, what individuals do at the psychological level — it produces ever more elaborate justifications for its continued relevance, dismisses critics as bad-faith actors, and treats inconvenient evidence as a matter of communications rather than substance. Festinger would recognise the pattern immediately.

The third is the reaction to AI. Generative AI is, among other things, a very efficient dissonance machine. It surfaces tensions in our beliefs about creativity, expertise, authorship, and the value of human labour that most people would prefer not to have surfaced. The responses one observes — dismissal, minimisation, ridicule, the production of buttressing beliefs about what AI really is or is not — are nearly textbook examples of the cheaper resolutions. The harder resolution, which is to actually revise one’s working assumptions about what the next decade of work will look like, is being deferred at a scale that will eventually compound.

The Asymmetry That Makes It Worse

There is a quietly devastating implication in all of this. Festinger’s framework includes an asymmetry that the historical account, on its own, does not capture: belief distortion is almost always cheaper than structural change. The deeper the dissonance, and the more central the threatened belief is to identity or institutional survival, the larger the gap becomes between the two options — and the more strongly the defensive resolution is selected.

The mechanism is therefore self-reinforcing in exactly the direction that makes it worse. As the adaptation gap widens, the cost of honest belief revision rises faster than the cost of defensive distortion. Which means the proportion of cognitive activity devoted to defence, rather than revision, tends to increase over time. Both in individuals and in institutions.

This is, I think, why the current period feels strange in a way the previous ones did not. Earlier generations dealt with technological and social change at a pace that allowed at least some genuine adaptation. We are dealing with it at a pace that has tipped the cost-benefit calculation decisively toward defence.

The Skill That Is Actually Required

If the diagnosis is right, then the most valuable cognitive capacity in this environment is not, as is often assumed, intelligence or analytical horsepower. There is no shortage of either, and both are perfectly compatible with sophisticated defensive resolution at scale.

The thing that is actually scarce — the thing that is, I would argue, the most genuinely countercultural cognitive skill of the present moment — is tolerance for unresolved dissonance. The capacity to hold a contradiction without immediately collapsing it into a defensive position. To say: I do not yet know how to integrate this new information with what I previously believed, and I am going to sit inside that discomfort for longer than is comfortable, because the alternative is to dissolve the contradiction prematurely and call the dissolution wisdom.

This is harder than it sounds. The mechanism Festinger described is not optional equipment. It activates whether we want it to or not. The skill is not to suppress it, but to notice it operating — to develop the metacognitive habit of asking, when a piece of information feels easy to dismiss: am I dismissing this because it is wrong, or because dismissing it is cheaper than revising the belief it threatens?

The people I have come to most respect, in business and outside it, are not the ones with the strongest convictions. They are the ones who can sit inside a live contradiction without resolving it on the wrong side just to feel better.

The world has outrun us. The honest response is not to pretend it hasn’t. It is to learn to think well from inside the gap.