The Monkey That Never Crossed the Lake

On Stories, Truth, and the Things We Learn Without Knowing Who Taught Us

Sometimes the things we fear most exist mainly in the distance between what our minds imagine and what actually happens.

There is a story about monkeys that isn't true. This has done remarkably little to discourage anyone from telling it.

I first encountered the “Hundredth Monkey” years ago in one of those books intended to awaken humanity before humanity did something regrettable with nuclear weapons. The story was irresistible. In the early 1950s, Japanese researchers were studying macaque monkeys on the island of Koshima. The scientists gave the monkeys sweet potatoes, which the monkeys apparently appreciated except for the inconvenient addition of sand.

One young monkey discovered that washing the potatoes improved the arrangement considerably. Other monkeys noticed. They began washing theirs too, and eventually the behavior spread through much of the troop.

So far, so good. Monkeys are perfectly capable of learning from one another. Human beings occasionally manage it too.

Then the story acquires wings. According to the popular version, when some critical number of monkeys had learned the behavior—the legendary hundredth monkey—something extraordinary happened. Monkeys on other islands, separated by water and without contact with the original group, suddenly began washing their potatoes too. Knowledge had somehow crossed the sea.

No boats. No lessons. No monkey exchange program. One morning the distant macaques apparently woke up thinking, You know, we've been doing potatoes wrong.

The story became evidence for something called the Hundredth Monkey Effect: when enough members of a species acquire a new awareness, the knowledge somehow enters a collective consciousness and becomes available to everyone. The idea migrated into books, seminars, spiritual teachings and social movements. It was especially attractive to people hoping for large cultural change. If only enough people awakened to peace, environmental responsibility, nuclear disarmament, spiritual consciousness, or whatever good thing happened to be under discussion, perhaps humanity itself would reach a tipping point.

There was only one problem. It apparently didn't happen that way, but…

The Story Gets Better

The original observations really do describe Japanese macaques learning to wash sweet potatoes, and the behavior really did spread. But the dramatic leap in consciousness—the mysterious moment when knowledge supposedly appeared among isolated monkeys elsewhere—was an embellishment. The spread could be explained through considerably less exotic mechanisms: observation, social learning, migration, contact and time.

There was no identifiable hundredth monkey and no persuasive evidence that monkey knowledge had suddenly learned to swim. It would be a wonderful story if it were true. Fortunately, it is an even more interesting story because it isn't.

While the monkeys may not have demonstrated some mysterious collective consciousness, the human response to the story demonstrated something every bit as remarkable.

The story crossed the water. It traveled from researcher to writer, writer to reader, teacher to student, speaker to audience. People repeated it because it expressed something they already suspected about human beings: ideas spread. Awareness can become contagious. Something appears at the margins of a culture and, a generation later, seems so obvious that we can hardly imagine how people ever thought otherwise.

Eventually the details mattered less than what people needed the story to mean. That is where the monkeys begin looking rather familiar.

Stories We Don't Remember Learning

People carry stories they no longer remember learning. Some stories came from parents, churches, marriages, schools, locker rooms, childhood humiliations, or the peculiar theology children manufacture while trying to explain why adults behave as they do. Some appear to have been assembled by a frightened eight-year-old working with limited information and then retained as corporate policy for the next fifty years.

I have to keep everyone happy. People eventually leave.

If I need someone, I'm weak.

Conflict means the relationship is failing.

My feelings are dangerous.

Something is fundamentally wrong with me.

Such conclusions don't remain thoughts for very long. Repeated often enough, they become organizing principles. We choose through them, love through them, defend ourselves through them, and interpret other people through them.

Eventually we stop experiencing them as stories.

They become the window, and after enough years looking through a window, we forget there is glass.

This is one reason psychological change can be so peculiar. A person may want relief from anxiety, anger, shame, compulsions, marital conflict, depression, or some behavior that has finally become too expensive to continue. Somewhere beneath the problem, however, there is often a story about who the person is and what the world requires of them. The symptom makes considerably more sense inside the story.

Sometimes the work isn't getting rid of the story. It is recognizing that it is a story—and discovering that an entire life need not remain arranged around it.

Yet Somehow It Crosses the Lake

Family systems theory gave us a useful way to think about this long before anybody started talking about psychic monkeys.

Dr. Murray Bowen was interested in how emotional patterns travel through generations. Families transmit considerably more than eye color, property and grandmother's recipe for pie. They pass along ways of handling anxiety, conflict, affection, sexuality, money, success, grief, anger, religion, disappointment and belonging.

We inherit rules nobody remembers writing.

In one family, disagreement means engagement. Everyone argues loudly over dinner, somebody calls somebody else an idiot, and ten minutes later they ask who wants pie.

In another family, a raised voice means catastrophe. Someone leaves the room, somebody else stops speaking for three days, and Thanksgiving develops the emotional atmosphere of a hostage negotiation.

Neither family holds an orientation meeting for its children. No grandfather sits his grandson down and says, “I have carried this unresolved anxiety for sixty-two years, and I would now like you to have it.”

Yet somehow it crosses the lake.

Bowen called this multigenerational transmission. We don't need anything paranormal to explain it. Anxiety organizes behavior. Children adapt to parents and parents react to children. Roles develop. Triangles stabilize tension. Stories become family mythology.

One generation hands the next a largely completed script, and because the actors were born backstage, they may never realize there is a script at all. We don't need telepathy. We have families.

We also have culture, imitation, language, attachment, memory, fear, ritual, advertising, education, churches, neighborhoods, dinner tables and that astonishingly efficient human communication system known as What will people think? Ideas cross water all the time.

The more difficult question is what happens after they arrive.

When the Story Has You

Acceptance and Commitment Therapy approaches this from another direction. ACT isn't especially interested in holding a trial for every thought that passes through the mind. Sometimes a more revealing question than Is this thought absolutely true? is simply: What happens to my life when I organize myself around it?

Suppose I carry the thought, I can't tolerate anxiety.

We could debate its accuracy, gather evidence and make charts, which psychologists enjoy almost as much as monkeys enjoy sweet potatoes.

Or we could watch what happens.

I avoid the airplane. I don't speak in the meeting. I refuse the invitation. I leave the grocery store. I stop driving across bridges. Each decision reduces my anxiety for the moment, and each quietly teaches me that the anxiety really was something I couldn't tolerate.

Gradually my world becomes smaller while the story becomes larger. Eventually I don't merely have the story. The story has me.

But this is where we have to be careful. Stories aren't the problem. Human beings cannot live without them, and I am not particularly interested in becoming the sort of perfectly rational creature who believes only things verified through double-blind controlled trials.

Such a person would be intolerable at dinner and probably unable to enjoy The Lord of the Rings.

Things That Never Happened and Are Still True

Nobody needs to locate Mordor archaeologically before Tolkien can tell us something true about power. Scrooge never existed, yet we recognize him. Icarus never flew, yet human beings continue flying too close to suns of their own making. Pan need not literally be waiting beside the water before an appetite can make a traveler forget where he was going.

A story can be factually fictional and existentially true.

Ancient storytellers understood this perfectly well. Aesop did not expect anyone to interrupt him to point out that foxes cannot speak. Jesus could tell of a Samaritan finding a wounded stranger beside a road without first producing the man's medical records.

Parable, myth, poetry and fiction use things that may never have happened to illuminate things that happen every day.

We impoverish ourselves when we ask poetry to behave like science and we endanger ourselves when we allow science to become poetry. Because the reverse problem also exists: a story can be factually false, existentially false, and still become extraordinarily persuasive.

Our Monkey Has Broadband

Human beings are particularly vulnerable to repetition. Hear something often enough and familiarity begins masquerading as evidence. Add fear, outrage, tribal loyalty, desire, or a sufficiently confident narrator and the effect becomes stronger.

We have always been susceptible to convincing stories. Modern technology has simply given them better transportation.

The Hundredth Monkey needed books, lectures and seminars. Our monkey has broadband.

An idea can now cross the planet before anyone pauses to ask whether it should have crossed the room. Social media rewards what attracts attention, which is not necessarily what deserves belief. Algorithms learn what frightens, delights, enrages, flatters or confirms us and then generously provide more of it.

Artificial intelligence adds another wrinkle. Language can now sound coherent, authoritative, polished and entirely plausible while being wrong.

The machinery is new. The monkey is ancient.

We have always wanted stories that make the world coherent. We particularly enjoy the ones that confirm what we already believe, explain why our tribe is right, identify who is responsible for our discomfort, and spare us the exhausting work of uncertainty.

The quieter versions sound more personal.

My father never loved me.

My marriage was a mistake.

I'm just an anxious person.

God is disappointed in me.

I'll never trust anyone again.

Sometimes those sentences contain considerable truth. Sometimes they contain pain trying to become certainty. Usually they deserve something better than either immediate agreement or correction. They deserve curiosity.

Where did this story come from?

What does it help me understand?

What does it prevent me from seeing?

What kind of person do I become when I believe it?

More Than One Kind of Truth

None of this means truth is merely a matter of perspective. Quite the opposite.

Maturity requires distinguishing between meaning and fact without sacrificing either. We need science to tell us whether monkeys actually transmitted knowledge mysteriously across islands. We need story to ask why we found the possibility so compelling. Confusing those two ways of knowing gives us superstition on one side and an impoverished account of human experience on the other.

A laboratory can tell us a great deal about grief. It can describe neurological activity, cortisol, sleep disruption, attachment systems and the statistical course of bereavement.

But when someone we love dies, we may still need a poem.

Not because the poem is more scientifically accurate. Because we are more than the question science is answering.

Perhaps this is why I have become less impressed by certainty. Human beings are complicated creatures. We inherit stories, revise them, defend them, rebel against them, repeat them, and occasionally spend years trying to escape one only to discover that we've recreated it with different actors.

Truth matters enormously.

So does humility about how quickly we convince ourselves we've found it.

What Crosses After Us

And yet we are not merely products of the stories we inherit.

This is where Bowen and ACT, despite their very different languages, meet somewhere important. Bowen reminds us that we inherited more than we realize. ACT reminds us that we don't have to obey everything our minds inherited.

Between those two propositions lies an enormous amount of freedom.

Differentiation means I can remain connected to the people and systems that formed me without being entirely governed by their anxiety. Psychological flexibility means I can notice thoughts, feelings, memories and old stories moving through me while still choosing what I do according to what matters. Neither requires becoming historyless.

The question is what we do with the history we've been given.

Perhaps that is the part of the Hundredth Monkey story worth saving. Not that consciousness mysteriously leaps between brains when some magical numerical threshold is reached, but that human beings are always transmitting something.

Families do it.

Marriages do it.

Parents do it.

Teachers do it.

Friends do it.

Therapists do it.

Every one of us is both recipient and transmitter of things we only partly understand. Which leaves a question considerably less exotic than collective consciousness and considerably harder to avoid:

What am I passing along? 

My anxiety? Resentments? Shame? Certainty? Unfinished battles? Or curiosity, courage, kindness, humor, forgiveness, wonder, and the capacity to tolerate a question long enough that I don't have to manufacture an answer?

Perhaps nothing mysterious ever crossed the water between those Japanese islands. No invisible intelligence leapt from monkey to monkey. No critical mass tilted the consciousness of the species. A few macaques learned to wash sweet potatoes, other macaques learned by ordinary means, and human beings did what human beings have always done.

We made a story and the story crossed the water.

That may be the part worth keeping.

Stories cross distances bodies cannot. They cross generations. They move from parents into children, teachers into students, frightened children into the adults they become. Some carry wisdom. Some carry wounds. Some tell us who we are before we're old enough to object.

The work of becoming a person may therefore involve something more difficult than acquiring better stories. We have to turn around occasionally and examine the ones already traveling with us.

Where did you come from?

Are you true?

What do you ask of me?

What kind of person do I become when I believe you?

And perhaps there is one more question, because other people are downstream from us:

Do I want to pass you along?

Maybe one person decides not to. Then another. Then another.

No one knows exactly how many it takes. We may never know who the hundredth monkey was. But perhaps the more important question has always been what the hundredth monkey chose to pass along.

Are you that monkey?

© 2026 Thomas Kurtz. All rights reserved.

Published by Thomas Kurtz Counseling, LLC.