Aha, Uh-Oh, and D’oh! The Psychology of Insight

The duck-rabbit illusion
The duck–rabbit: nothing changes but the way of seeing.

By Dr Neel Burton — Psychiatrist, philosopher, and wine writer; Fellow of Green Templeton College, University of Oxford; author of over twenty books.

How to think outside the box and have more original ideas.

The word ‘insight’ is sometimes used to mean something like ‘self-awareness’, including awareness of our thought processes, beliefs, desires, emotions, and so on, and of how they relate to one another and to the truth.

Of course, self-awareness comes by types and degrees. Owing to chemical receptors in their tendrils, vining plants know not to coil around themselves, and in that much can be said to have awareness of self and not-self. Infants only begin to develop reflective self-awareness at around 18 months of age, enabling them to recognise themselves in pictures and mirrors.

But insight is also used to mean something like ‘penetrating discernment’: a deep understanding of a person, problem, or situation. Such understanding may emerge gradually, but it can also arrive all at once, with a previously hidden truth—or the solution to a previously intractable problem—suddenly flooding the mind. This sudden apprehension of an insight is sometimes called an epiphany (Greek, ‘manifestation’, ‘coming into the light’), revelation, or ‘aha’ moment.

It is this epiphanic form of insight with which I am principally concerned. Unlike analytical thinking, which proceeds consciously and laboriously from one step to the next, it seems to come from nowhere. One moment, we are staring helplessly at the problem; the next, we can see straight through it. It is rather like climbing a mountain in fog, turning round, and suddenly seeing the entire landscape spread out below.

The Anatomy of Insight

Such ‘aha moments’, epitomised by Archimedes’ cry of Eureka! Eureka! (Greek, ‘I found it! I found it!’), involve a sudden shift in understanding, often by seeing something familiar in a new light or bringing previously disconnected elements together. They carry a characteristic feeling of clarity and conviction, and often delight—though they can also devastate, depending on what has been apprehended.

It is said that, upon sinking into his bath, Archimedes noticed the water level rising and suddenly understood that the volume of water displaced corresponded to the volume of the parts of his body that had been submerged. Less rarefied examples of aha moments include suddenly understanding a joke, or suddenly ‘seeing’ the other aspect of a reversal image such as the duck-rabbit (pictured).

Aha moments, it seems, primarily arise from unconscious and automatic processes, and—you might have noticed—our eyes naturally tend, when mulling over insight problems, to look away from visual stimuli. Brain-imaging studies suggest that this withdrawal of attention, or ‘looking inside’, may be part of the mechanism of insight. By screening out the immediate environment, the mind creates the spare capacity for loose associations to come together. The flash of insight may be sudden, but the work that produces it is not. Indeed, that work may draw upon a lifetime of experience and study.

This helps explain the so-called incubation effect. We wrestle with a problem, reach an impasse, and put it aside—only for the answer to come to us in the shower, on a walk, or upon waking. Had Archimedes not already been wrestling with the problem of measurement, his bath would not have become so famous.

Insight is closely related to intuition. If an intuition is a disposition to believe without conscious deliberation, an epiphanic insight is the sudden apprehension of a previously hidden relation. Intuition may lead to insight, but it can also remain no more than a hunch—rather than a sudden coming together.

Aha moments of the Archimedean kind might be distinguished from uh-oh moments, in which we become aware of an unforeseen problem, and from d’oh moments, popularised by the Simpson patriarch, when a foreseeable but unforeseen problem hits us or we have a flash of insight into our complete lack of insight.

In all three cases, something previously hidden is suddenly revealed, be it an answer, a danger, or our own stupidity.

Although insight often puts us in touch with some truth, there can also be false insights. Insight, therefore, is not exempt from analytical verification. Insight proposes; reason disposes. The highest thinking is not the one or the other, but both together.

The Price of Seeing Differently

‘Thinking outside the box’ is a cognitive feat. When we understand something in a particular way, it is very difficult to apprehend it in any other way, even in the face of the strongest contradictory evidence. It is not merely that we cannot imagine the answer; often, we are trapped inside the wrong question or assumption.

In When Prophecy Fails (1956), the social psychologist Leon Festinger discusses his experience of infiltrating a UFO doomsday cult whose leader had prophesied the end of the world. When the end of the world failed to materialise, most of the cult members dealt with the dissonance that arose from the cognitions ‘the leader said that the world would end’ and ‘the world did not end’ not by ditching the cult or its leader, as you might expect, but by rationalising that the world had been saved by the strength of their faith. Taking their assumptions for facts, the cult members simply reinterpreted the evidence in a way that preserved their existing beliefs.

Very often, to see something in a different light also means to see ourselves and the whole world in that new light, which can threaten and undermine our sense of self and raise atavistic defences. It is more a matter of emotion or self-conception than of reason or intelligence, which explains why even leading scientists can struggle with contravening evidence.

As the physicist Max Planck (d. 1947) observed, ‘A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.’ Or, to put it more pithily, science advances one funeral at a time.

What is true of eminent scientists is true also of us. Our life cannot possibly have been a long list of mistakes. A new insight can demand a new self—which is a higher price than we are willing or able to pay. Younger people, having less to lose, can still afford to be open to ideas—but not for long. By the age of about 22, there is little left of the god in them.

Our attachment to our beliefs is so strong that contravening evidence or attempts to convince us otherwise can in fact entrench them—which is why, as a psychiatrist, I rarely challenge my patients, or indeed anyone, directly. But you don’t have to take my word for it: in a study, supplying ‘corrective information’ to people with serious concerns about the adverse effects of the flu jab made them less willing to receive it. This more than substantiates the German proverb: ‘Never give uninvited advice. The wise won’t need it, the fools won’t heed it.’

Some Insights Into Having Insights

So, short of dissolving our egos, which might take twenty years in a temple, or, ironically, an unusually strong ego, what can we do to increase our cognitive flexibility?

Naturally, it helps to have the tools of thought, including language fluency and multiple frames of reference as given by knowledge and experience. But more important is to develop that first sense of insight—namely, insight as self-awareness.

Self-awareness enables us to distinguish the problem from the assumptions that we have brought to it. At a practical level, we can change the way in which the problem is represented: draw it, explain it aloud, reverse it, reduce it, enlarge it, or translate it into an analogy. More searchingly, we can ask: What am I taking for granted? What would someone from another discipline, culture, or period see here? What if the opposite were true? What am I reluctant to notice because noticing it would cost me something? And how much more is it costing me to be that sort of person?

More benignly, we need to create the time and conditions for thoughts to connect. My own associative thinking is much more active when I’m both well-rested and at rest, for example, standing under the shower or ambling in the park. The very title of this essay came to me while cooking dinner and pouring a glass of wine, after the essay had been written. Jack Welch (d. 2020), as Chairman and CEO of General Electric, spent an hour each day in what he called ‘looking out of the window time’. And August Kekulé (d. 1896) claimed to have discovered the ring structure of the benzene molecule while daydreaming about a snake biting its own tail.

We tend to treat looking out of the window as the opposite of thinking. Often, it is thinking relieved of its supervisor. In my early twenties, as a strategy consultant in Paris, I would get told off for going out for walks. I once responded, ‘How do you expect me to think, locked up in a cubicle?’ (They didn’t like me.) Modern life supplies endless stimulation and very little mental vacancy, leaving us rich in information but poor in opportunities for this information to reorganise itself.

Time is a very strange thing and not at all linear: sometimes, the best way of using it is to waste it.

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If this essay spoke to you, you might look into Hypersanity: Thinking Beyond Thinking and How to Think Like Plato and Speak Like Cicero.

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What Our Tears Are Trying to Tell Us

Man welling up

By Dr Neel Burton — Psychiatrist, philosopher, and wine writer; Fellow of Green Templeton College, University of Oxford; author of over twenty books.

Who never ate his bread with tears doesn’t know what life tastes like.
—after Goethe

In many cultures, especially for men, crying is considered to be undignified and infantile behaviour, except in certain specific circumstances such as mourning the loss of a relative. After childhood, men shed tears much less frequently than women. The reasons for this are partly biological, but mainly sociocultural.

‘Crying’, or ‘tearing up’, is not just one thing. There are in fact three types of tear, two of which are rather uninteresting: basal tears that lubricate and protect the eye, and reflex tears that flush out irritants such as smoke particles or onion vapours. The third type of tear is, of course, shed in response to emotion.

Crocodile Tears

Whereas many animals have basal and reflex tears, emotional tears appear to be uniquely human. Although other animals, of course, vocalise and express distress, there is no convincing evidence that they shed tears for emotional reasons. So, presumably, if women cry more often than men, it is because they are more human? Elephants and chimpanzees are sometimes said to ‘weep’, but it has not been conclusively demonstrated that these are indeed emotional tears. On the other hand, we can be pretty sure that crocodiles don’t sob. The expression ‘to shed crocodile tears’ has its roots in an ancient legend, according to which crocodiles pretend to weep to either lure or mourn their prey.

What I Remember from Med School

Reflex and emotional tears are produced by the lacrimal gland and drained through the nasolacrimal duct into the nose, which is why we also sniff when we cry. Any excess fluid spills out of the eyelid and trickles along the side of the nose or surface of the cheek, forming teardrops. Damage to the ophthalmic branch of the trigeminal nerve desensitises the cornea, impairing the production of reflex tears. However, it is the parasympathetic division of the facial nerve that is responsible for making tears, and damage to the facial nerve, as in Bell’s palsy, can lead to a decrease in tear production.

Existential Tears

When we think of crying emotional tears, we think of sadness and grief. But we also shed emotional tears in response to a range of other, sometimes positive, emotions and feelings, including elation, laughter, love, frustration, pain, anger, and surprise. We may also cry in response to music, beauty, kindness, yearning, reunion, or anything that strikes us as poignant. What all these instances of crying have in common is not sadness, but significance.

Social Tears

Crying is not merely a private affair. Tears may serve a number of social functions. In particular, they may serve to convey our emotions while emphasising their depth and sincerity; draw attention, sympathy, and assistance at a time of danger, distress, or need; and serve as a signal of appeasement, dependency, or attachment. If someone cries in our presence, it is almost impossible not to be moved, even changed, by that. No surprise, then, that tears can also be used to manipulate and deceive. The younger you are, the better you know this.

Healthy Tears

In ancient and mediaeval times, physicians believed that crying purged excess humours from the body. This idea survives in the modern scientific notion that emotional tears serve to excrete stress-related substances such as ACTH. But the more important purgation is, of course, psychological.

Crying may help us to feel better, in particular, by enabling us to experience, express, and ‘process’ our emotions. In the Poetics, Aristotle argues that tragedy, by arousing emotions such as pity and fear, brings about a catharsis—a purgation or purification—of such emotions. After crying, we may feel not better exactly, but differently: calmer, clearer, more reconciled to life, or simply more certain of who we are and where we stand.

Crying as a Way of Knowing

Emotional tears signal moments that are of existential importance in our lives. They tell us that something matters deeply. Sometimes we know what that something is—the death of a parent, the birth of a child—but at other times our tears seem to know before we do, and to arrive bearing a message.

Imagine that a relationship or friendship has broken down. Three months later, or even three years later, you sit down on a park bench and unexpectedly begin to cry. Those tears tell you something that you may not have known, something that you may have been guarding against: that you still miss the relationship, and that it mattered more than you realised. The tragedy is when the other person also has their park bench moment, but neither of you acts upon it.

Thirty years, gone like that.

We do not always cry because we know what matters to us. Sometimes we know what matters to us because we cry. In this sense, crying can be a way of knowing, revealing deeper truths that reason, thought, and language cannot reach. It sometimes happens that we cry without quite knowing why. When that happens, we should ask ourselves: What does this mean? What is the more refined part of me trying to tell me?

What brings us to tears changes as we change. A child might cry because they are underwhelmed by their Christmas presents. The sadness is real because, at that age, the presents really do matter. As we mature, the objects of our tears change along with our hierarchy of values. We cry less at the frustration of our immediate desires, and more at an unexpected kindness, a beautiful landscape, a piece of music, an abstract value like dignity or freedom, or the human condition.

We cry for our ex not merely because we can’t have them, but because they can’t have us.

Because without us, how on earth will they cope?

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If this essay spoke to you, you might look into Heaven and Hell: The Psychology of the Emotions.

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A Psychiatrist’s Three-Step Test for Self-Deception

Woman looking into mirror.
Can you trust what you see?

By Dr Neel Burton — Psychiatrist, philosopher, and wine writer; Fellow of Green Templeton College, University of Oxford; author of over twenty books.

Some time after the publication of Hide and Seek, I received a letter from a reader, asking:

Are common, ordinary things like seeing the bright side, a silver lining, or an opportunity in misfortune just feeble rationalisations to help us live in a comfortable illusion? Your example about ‘sweet lemons’, a rejected love interest explained away as a blessing in disguise doesn’t feel to me as an illusory or self-deceptive belief. If a cancer patient is glad that they can respect life more fully after getting sick, surely they’re not just dwelling in self-deception and rationalising away things, clinging to some mistaken belief.

Could you clear things up a little about the murky world of self-deception? It’s true that someone rejected for a job opening might say that they’re ‘keeping doors open’, that they got ‘life experience’ or that setbacks are a part of life, and this would allow them to feel better, but I’ve never considered this to be some sort of self-deception.

I replied: 

That’s a very good question. How do we know when we’re deceiving ourselves, rather than learning or growing from our experiences, or just making the best out of a bad situation? By its very nature, self-deception is hard to distinguish from the truth—whether our internal, emotional truth, or the external, objective truth.

That a belief comforts us does not make it false; that it pains us does not make it true. What matters is whether we arrived at the belief because it fits the facts, or because we need the facts to fit the belief.

To establish the direction of fit between your beliefs and the world, here are three tests you can apply.

1. Feel It

First, trust your intuition, and ask yourself: ‘What does it feel like to react in the way that I’m reacting?’ Does it feel calm, considered, and nuanced, or shallow and knee-jerk? Am I taking the welfare of others into consideration, or is it just all about me? Am I satisfied with, even proud of, my self-conquering effort, or am I left feeling small, anxious, and a little ashamed?

2. Test It

Try to falsify the belief—that is, to prove yourself wrong. Self-deception doesn’t ‘add up’ in the grand scheme and can often be brought down by even superficial questioning. As with a jigsaw, try to look at the bigger picture of your life and see how the belief or reaction might fit in. Did you react from a position of strength or vulnerability? What would the person you most respect think? What would Socrates think? Ask others for their opinion. If they challenge or disagree with you, does that make you feel angry, upset, or defensive? The nature of your reaction and its congruity can speak volumes about the character of your motives.

3. Project It

Finally, project the belief into the future and consider where it is likely to lead. Truth is constructive and adaptive, whereas lies are destructive or self-defeating. So how useful is the thought or reaction going to be for you? Are you just covering up an irrational fear to get by, or creating a solid foundation for the future? Are you empowering yourself to fulfil your highest potential, or depriving yourself of opportunities for growth and creating further problems down the line?

Is the cycle simply going to repeat itself, or will the truth, at last, make you free?

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If this essay spoke to you, you might look into Hide and Seek: The Psychology of Self-Deception.

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Synonyms, or Opposites?

Socrates at his trial
Socrates: humble, but not always modest.

By Dr Neel Burton — Psychiatrist, philosopher, and wine writer; Fellow of Green Templeton College, University of Oxford; author of over twenty books.

If you are brilliant and know that you are brilliant, is it arrogant to say so? And if you pretend that you are not, is that humility—or merely modesty?

‘Modesty’ and ‘humility’ are often used interchangeably, but they are actually very different concepts.

‘Modesty’ derives from the Latin modus, ‘measure’ or ‘manner’, and means restraint in appearance and behaviour. It is the reluctance to flaunt, display, or otherwise draw attention to oneself.

Modesty often implies a certain artfulness or artificiality, perhaps even insincerity or hypocrisy. In Dickens’s David Copperfield (1850), Uriah Heep is characterised by his obsequiousness, and often brings up his own ‘umbleness’ in an attempt to disguise the true scale of his ambition. Modesty often poses as humility, but, unlike humility, is superficial and external rather than deep and moral. At best, modesty is no more than good manners.

Indeed, modesty can sometimes be a subtle form of vanity or advantage-seeking. By conspicuously understating some trait or achievement, we may be inviting others to contradict and praise us, or to like us better. The ego has not disappeared; it has merely become more cunning.

‘Humility’, like ‘humiliation’, derives from the Latin humus, ‘earth’ or ‘dirt’. Unlike mere modesty, true humility derives from a proper perspective on our human condition: one among billions on a small planet among billions, like a spore on a crumb of cheese.

Of course, it is nearly impossible for human beings to remain this objective for very long, but truly humble people are nonetheless far more conscious of their cosmic insignificance, an insignificance that verges on non-existence. A speck of dust does not think itself superior or inferior to another, nor does it concern itself with what other specks of dust might or might not think.

Enthralled by the miracle of existence, the truly humble person lives not for herself or her image, but for life itself.

In sum, to be humble is to subdue our ego so that things are no longer all about us, whereas to be modest is to protect the ego of others so that they do not feel uncomfortable, threatened, or small, and attack us in turn.

Because genuinely humble people often have a great deal to be modest about, they may need to slap on an extra thick veneer of modesty, or simply give up the game.

Humble people do not, as is often thought, have a low opinion of themselves. Instead, they have an accurate opinion of themselves, and, probably, of us as well. They neither elevate nor diminish themselves, but seek to see themselves and everything else for what they truly are. Erasmus (d. 1536) could not have put it more pithily when he said, ‘Humility is truth.’

If humility is truth, modesty is often a lie—so that the two can sometimes come into conflict. Modesty may require us to gloss over the truth to spare the feelings of others; humility, on the other hand, may demand that we speak the truth. Whereas Uriah Heep was modest without being humble, Socrates was humble without always being modest.

The Case of Socrates

In 399 BCE, at the age of seventy, Socrates was indicted for impiety. He was accused of ‘studying things in the sky and below the earth’, ‘making the worse into the stronger argument’, and ‘teaching these same things to others’.

At his trial, he gave a defiant defence, telling the jurors that they ought to be ashamed of their eagerness to possess as much wealth and reputation as possible, while not caring for or giving thought to wisdom or truth, or the best possible state of their soul.

After being convicted and sentenced to death, Socrates addressed the jurors, saying:

You think that I was convicted through deficiency of words—I mean, that if I had thought fit to leave nothing undone, nothing unsaid, I might have gained an acquittal. Not so; the deficiency which led to my conviction was not of words—certainly not. But I had not the boldness or impudence or inclination to address you as you would have liked me to address you, weeping and wailing and lamenting, and saying and doing many things which you have been accustomed to hearing from others, and which, as I say, are unworthy of me. But I thought that I ought not to do anything common or mean in the hour of danger: nor do I now repent of the manner of my defence, and I would rather die having spoken after my manner, than speak in your manner and live.

Throughout his long life, Socrates had been a paragon of humility. When his friend Chaerephon asked the Delphic oracle if anyone was wiser than Socrates, the priestess of Apollo replied that no one was wiser. To discover the meaning of this divine utterance, Socrates questioned a number of people with a claim to wisdom, and in each case concluded, ‘I am likely to be wiser than he to this small extent, that I do not think I know what I do not know.’ From then on, he dedicated himself to the service of the gods by seeking out anyone who might be wise and, ‘if he is not, showing him that he is not.’ 

Was Socrates lacking in humility before the jurors? Was he, paradoxically, being arrogant by bragging about his humility? Perhaps he deliberately put on a brazen display because he wanted to die, because he understood that by dying a martyr his teachings would be preserved for posterity.

Or perhaps genuine humility can seem like arrogance to those who are truly arrogant.

The more arrogant someone is, the more modesty they require from others.

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If this essay spoke to you, you might look into Heaven and Hell: The Psychology of the Emotions.

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The Manic Defence: Why You Can’t Bear to Stop

Sisyphus, by Titian
Sisyphus, by Titian.  Sisyphus is condemned to push his rock forever. Worse than that, he can never put it down.

By Dr Neel Burton — Psychiatrist, philosopher, and wine writer; Fellow of Green Templeton College, University of Oxford; author of over twenty books.

Essay substantially revised on 17 August 2026.

A horse galloped down the path at speed. It seemed as if the rider was on some urgent and vital mission. ‘Where are you heading?’ hollered a bystander. ‘I don’t know!’ came the already distant reply, ‘Ask the horse!’ —A Zen story

The manic defence is the tendency, when confronted with threatening thoughts and feelings, to distract the conscious mind with a flurry of activity or with the opposite thoughts and feelings.

A paradigm of the manic defence is the person who spends all their time rushing around from one task to the next, unable to tolerate even short stretches of inactivity. Other examples include the socialite who attends one event after another, the small and dependent boy who charges around declaiming that he is Superman, and the insecure teenager who laughs ‘like a maniac’ at the slightest intimation of sex. The behaviour or activity need not be frantic or compulsive. It might involve working, exercising, socialising, travelling, even helping others.

But that is all beside the point. What matters is what is being blocked out.

In Virginia Woolf’s Mrs Dalloway (1925), one of several ways in which Clarissa Dalloway prevents herself from thinking about her life is by planning needless events and then fussing over their every detail. In the 2002 film The Hours, which takes its inspiration from Woolf’s novel, the poet Richard Brown puts it rather more cruelly: ‘Oh, Mrs Dalloway… Always giving parties to cover the silence.’

The Essence of the Manic Defence

The essence of the manic defence is to prevent feelings of despair and helplessness from entering the conscious mind by occupying it with opposite feelings of euphoria, purposeful activity, and omnipotent control.

This might be why people feel driven not only to mark but also to celebrate such depressing milestones as entering the workforce (graduation), getting ever older (birthdays, anniversaries, New Year), and even, in more recent times, death and dying (Halloween). Our forefathers would be turning in their graves if they could see what had become of All Saints’ Day. 

It can be no coincidence that Christmas, originally a pagan solstice festival, is celebrated in the bleak mid-winter, in the shortest and darkest days of the year. A few years ago, I spent Christmas in New Zealand, where it is summer at that time of year—and the people there made much less of a fuss of it.

The manic defence may also take on more subtle or covert forms, such as creating a commotion over something trivial; filling every ‘spare moment’ with reading, study, or talking on the phone to a friend; spending several months preparing for some civic or sporting event; seeking out status or celebrity so as to be a ‘somebody’ rather than a ‘nobody’; entering into baseless relationships; and even, sometimes, getting married and having children. Of course, I don’t mean you.

When the Manic Defence Becomes a Problem

Everyone uses the manic defence, but some people use it to such an extent that they find it difficult to cope with even short periods of unstructured time such as holidays, weekends, and long-distance travel—which explains why airport shops are so profitable.

Since the advent of smartphones, it can be a struggle to go a few hours, or even the space of a toilet break, without checking our device. God forbid that we should be left alone, even for five minutes, with our own thoughts. The significance of the smartphone is that it has put the manic defence in your pocket, available anytime, anywhere.

Of course, keeping busy need not be unhealthy. It becomes so when we cannot bear to stop—when the activity serves not simply to live or exalt life, but to avoid being alone with ourselves.

The Norse gave the name Hel both to the goddess of death and to her cold, hidden kingdom. Hel is our hell, from an ancient root meaning ‘to conceal’. Unlike Valhalla, with its endless fighting and feasting, Hel is a realm of deprivation and stasis: the horror of nothing happening. Perhaps this is what we fear whenever we stop—not inactivity itself, but descent into the hidden place.

‘To do nothing at all,’ observed Oscar Wilde, long before the advent of the smartphone, ‘is the most difficult thing in the world, the most difficult and the most intellectual.’

People with a strong manic defence are unable to live in the moment, unable to be truly alive. They leave themselves no opportunity to integrate their thoughts or process their emotions, that is, no opportunity to gather perspective or come to terms with reality, that is, no opportunity to grow.

Because they never let it in, they lose all immunity to despair. And so when it finally hits them, it hits them like a tidal wave.

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If this essay spoke to you, you might also enjoy Hide and Seek: The Psychology of Self-Deception.

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