Why Do Highly Intelligent People Disagree?

That should make us a little less confident during arguments on WhatsApp.

Albert Einstein and Niels Bohr spent a good part of their intellectual lives debating a question at the heart of twentieth-century physics. They were not two commentators who had watched different videos online. Einstein had helped build quantum physics itself. Bohr was one of the leading figures behind the interpretation that would become dominant.

They both knew a great deal.

They both thought a great deal.

They knew each other personally.

And they disagreed.

Perhaps that is a good place to start.

The Trouble with Bringing Einstein into an Argument

Einstein has a considerable narrative advantage: almost everyone knows who he is.

Even people who have never opened a physics book recognize the hair, the tongue in the photograph, and the most famous equation most of us prefer to admire without doing the math.

Niels Bohr needs a slightly longer introduction. A Danish physicist, a Nobel laureate in physics, one of the central figures in the development of quantum theory, and the founder of an intellectual community in Copenhagen that brought together some of the greatest physicists of his generation.

Einstein and Bohr were not adversaries in the ordinary sense. They had deep intellectual respect for each other. They met at conferences, spoke in person, and argued for hours. Their most famous disagreements took shape at the Solvay Conferences of 1927 and 1930, gatherings where an unreasonable concentration of geniuses per square foot tried to work out what, exactly, nature was doing.

The 1927 conference had 29 participants. Seventeen of them were, or would become, Nobel laureates.

Probably not the best place to try to impress someone by mentioning an interesting article you had read.

Einstein presented problems and thought experiments designed to put pressure on the interpretation Bohr defended. Bohr responded. Einstein came back with another problem. In some historical accounts, Bohr spent the night working through the objection and returned the next day with an answer.

On one of those occasions, Bohr’s answer drew on Einstein’s own general theory of relativity.

There is a certain elegance to that.

It is like spending the night taking someone’s argument apart and showing up in the morning with the tools from his garage.

But What Were They Disagreeing About?

We do not need to learn quantum mechanics to understand the philosophical heart of the problem.

Classical physics had accustomed scientists to imagining a natural world that, in principle, had definite properties and followed causal relationships. If we knew enough about a system’s conditions, we could describe what it was doing.

Quantum mechanics began producing a much stranger description. In certain situations, the theory did not seem merely to conceal a property that was already definite. The act of measurement itself, the experimental arrangement, and probabilities came to play a fundamental role in the description.

Bohr was much more comfortable with this break than Einstein was.

For Bohr, it made no sense to demand that microscopic reality conform to the intuitive categories we had developed in the macroscopic world. Depending on the experimental arrangement, phenomena could require complementary descriptions—such as wave and particle—that could not be applied simultaneously in the classical way, yet were both necessary for a complete description of what could be observed.

Einstein did not deny the enormous predictive success of quantum mechanics. His unease ran deeper: he did not believe that this probabilistic description was the last word on reality. To him, the theory seemed incomplete.

So this was not a disagreement between someone who understood physics and someone who did not.

It was a disagreement about what a physical theory should be able to say about reality.

And this is where the problem starts getting interesting for the rest of us.

Because when two very intelligent people disagree, our favorite explanation stops working.

We cannot simply say:

“He thinks that because he didn’t understand.”

Perhaps he understood perfectly.

Perhaps he is looking from somewhere else.

Before we go any further, though, let us hold on to a small observation. It seems almost silly now. It will seem less silly later.

I am not going to decide here whether Einstein or Bohr was right about the ultimate structure of reality. There is a fairly solid justification for that caution: I am not a quantum physicist.

But there is one thing I feel considerably more confident about.

Einstein’s position came from Einstein.

This may not qualify as a major scientific breakthrough. Still, it is worth leaving on the table.

That position emerged from a history: education, problems confronted, theories developed, intuitions formed, successes, failures, reading, conversations, and particular ways of organizing what he encountered. All of that was part of the man who arrived at that discussion.

Bohr’s position, curiously enough, came from Bohr.

It would be rather disturbing to discover otherwise.

Of course, ideas circulate. People learn from one another, collaborate, incorporate arguments, and sometimes independently reach similar conclusions. And there is always the possibility that some historian will discover tomorrow that one of humanity’s great geniuses was shamelessly copying a colleague’s notebook. In that case, we will have another article.

But the point remains: neither position appeared without a history.

Hold on to that for now. We will need the idea again.

The Same Table, Two Realities?

Imagine Einstein and Bohr sitting at the same table.

On it are the same experimental results, the same calculations, the same mathematical problems, and probably enough coffee to worry a modern cardiologist.

If the data are the same, why aren’t the conclusions?

Because no one thinks with data alone.

We also think with concepts.

With assumptions.

With earlier models.

With criteria for what makes a good explanation.

With intuitions built through experience.

With questions we consider important.

And even with different tolerances for what we cannot yet explain.

Einstein had taken part in a monumental scientific revolution, but he retained a strong expectation of causal intelligibility and of a physical reality independent of observation. Bohr was more willing to accept that perhaps the problem lay precisely in demanding a description of nature built from categories unsuited to that scale.

Neither of them was simply looking at a photograph and describing different colors.

They were trying to decide what the photograph itself meant.

That is an important difference.

What If We Put a Philosopher in the Room?

Here begins a useful bit of make-believe.

Suppose that, in the middle of a discussion between Einstein and Bohr, someone opens the door and brings Aristotle into the room.

First, we would have some logistical problems.

Aristotle would not speak German, Danish, or modern English, would probably be quite impressed by electric lighting, and might need a few weeks just to understand why no one there still believed that celestial bodies were made of aether.

Once that little detail was taken care of, something intellectually interesting would happen.

Aristotle might not have the mathematical expertise to take part in modern quantum physics. But he could ask questions that the physicists, focused on their own problems, would not frame in quite the same way.

What does it mean to say that something has a property?

Does a property exist independently of the relationship in which it appears?

What are we calling a cause?

What does it mean to know something?

He would not enter the room to solve the equation.

He would enter to change the kind of question being asked.

That is a multiperspectival approach.

It does not mean that every perspective is equally qualified to answer every question. An economist does not become a quantum physicist simply by arriving with a different perspective. If he tried to correct Bohr’s equations after fifteen minutes of conversation, we would probably have discovered nothing more than a historical case of overconfidence.

But different fields can illuminate different dimensions of the same phenomenon.

The physicist asks how the system behaves.

The philosopher asks what we mean when we claim to know how it behaves.

The historian asks how those categories took shape.

The psychologist might ask why certain models become more cognitively comfortable than others.

The sociologist might observe how scientific communities build consensus, authority, and shared languages.

None of those questions replaces physics.

But physics does not replace all of them, either.

Before Einstein and Bohr, Two Greeks Were Already Very Good at Disagreeing

The advantage of going back to ancient Greece is discovering that humanity did not need the internet to learn how to disagree.

Plato and Aristotle make an especially interesting case because they were not simply two names we placed side by side centuries later.

Aristotle studied at Plato’s Academy for about twenty years.

They knew each other.

The student knew his teacher’s thought deeply and still developed a philosophy that departed from it on fundamental points.

And here we find that observation we left on the table a few pages back: an intellectual position does not appear without a history.

In Aristotle’s case, part of that history even had a name, a face, and an Academy: Plato.

Twenty years with the teacher did not produce a copy of the teacher. Among many other things, they produced someone well enough equipped to disagree with him in depth.

This complicates the comforting picture in which learning more necessarily pushes all of us toward the same conclusion. Sometimes learning more also gives us better tools for seeing exactly where we disagree.

Plato attached enormous importance to the Forms: intelligible structures that could not be reduced to the particular, changing objects we encounter in everyday experience. Aristotle rejected the need to separate forms from concrete things in that way. For him, understanding the world required investigating things themselves—their causes, changes, properties, and relationships.

The caricature became so powerful that it lasted for centuries.

In Raphael’s fresco The School of Athens, Plato points upward while Aristotle extends his hand toward the world in front of him.

It is an image, not a transcript of an actual discussion.

But it works wonderfully because it distills two intellectual tendencies.

One looks toward principles that transcend immediate experience.

The other insists on starting with the things that are here.

If we put the two of them to work discussing a tree, Plato might end up talking about what makes a tree intelligible as a tree while Aristotle was already examining roots, leaves, matter, form, causes, and development.

The tree, meanwhile, would go on photosynthesizing without expressing a philosophical preference.

This shows us another possible source of disagreement.

Two people may do more than give different answers.

They may regard different questions as fundamental.

The Teacher and the Student

There is something especially human about the relationship between Plato and Aristotle.

When we turn great thinkers into monuments, we forget that they, too, experienced relationships of teaching, admiration, criticism, and intellectual separation.

Aristotle did not have to consider Plato an idiot to disagree with him.

That sounds like a banal observation until we open a social media app.

Today, many arguments operate by a curious implicit rule: if an intelligent person has examined the facts and reached a conclusion different from mine, there are three possibilities.

They are dishonest.

They have been manipulated.

Or they are not as intelligent as everyone thought.

The fourth possibility tends to arrive late to the conversation: they built their conclusion from a different combination of assumptions, experiences, priorities, and criteria.

And here we come back to that small observation we left about Einstein.

At first, it seemed almost tautological: Einstein thought like Einstein. But now it has acquired a historical dimension.

Aristotle spent about twenty years at Plato’s Academy. Part of what he became intellectually was built in that very setting, in contact with the man he would later disagree with on fundamental points.

In other words, knowing a perspective deeply does not oblige someone to end up within it. Sometimes the opposite happens. The better we know a structure of thought, the more precisely we can identify where we stop following it.

Aristotle’s position also came from Aristotle—but the history that produced Aristotle included Plato.

Hold on to that additional layer.

We are not finished with that small observation about Einstein.

Freud and Jung Walk into the Consulting Room

We can move forward more than two thousand years and find another pair who make the problem even more human.

Sigmund Freud and Carl Gustav Jung knew each other, worked closely together, and had an intense intellectual relationship before their break.

Freud came to see Jung as a central figure in the future of psychoanalysis. Jung admired Freud, but gradually began to reject important parts of his theoretical framework, especially the centrality Freud assigned to sexuality and the way he interpreted libido and the unconscious.

This disagreement did not happen between strangers.

It happened within a relationship of influence, closeness, and expectation.

That changes something.

When an idea is merely an idea, we can abandon it relatively easily.

When it is part of a school of thought, a friendship, a career, an identity, and a relationship between teacher and student, changing our minds can mean changing far more than a sentence in a notebook.

Freud and Jung allow us to add new variables to Einstein and Bohr’s table.

Affection.

Identity.

Loyalty.

Ambition.

Clinical experience.

Cultural differences.

Expectations about the future of a discipline.

Now the question “Why do two intelligent people disagree?” is starting to seem too small.

Perhaps we should ask:

How many things are disagreeing when two people disagree?

The Illusion of a Mind without a History

We like to imagine intelligence as a kind of processor.

Facts go in.

Intelligence gets to work.

A conclusion comes out.

If two perfectly rational machines received the same data and the same rules, we would expect similar results.

But human beings do not arrive at a discussion empty.

Einstein did not begin to exist intellectually at the moment Bohr presented an argument.

Neither did Bohr.

Plato and Aristotle brought different backgrounds, temperaments, and philosophical projects.

Freud and Jung developed clinical experiences and models of the mind that gradually came to organize the same phenomena in different ways.

Every new piece of information enters a system that already has a structure.

That is true of geniuses.

And it is true of us.

When two people discuss politics over Sunday lunch, they are not merely comparing two spreadsheets of facts.

One may have grown up in a family that experienced poverty and see certain policies primarily through the lens of social protection.

Another may have built a small business, lived through years of instability, and perceive the same policy primarily in terms of costs, incentives, and economic effects.

A third may work in public service.

A fourth may study history.

A fifth just wanted dessert and now regrets asking whom their uncle voted for.

And yes: the uncle’s opinion also came from the uncle.

The difference is that no one gave him a Nobel Prize, which is probably better for the smooth running of lunch.

He, too, arrived at the table carrying a history. Dessert simply had the bad luck to be in the same room.

The same object passes through different systems.

And produces different meanings.

Does That Mean Everyone Is Right?

No.

This is one of the most dangerous confusions when we talk about perspectives.

Understanding why someone reached a particular conclusion does not automatically make that conclusion true.

There are factual errors.

There are contradictory arguments.

There is better and worse evidence.

There are people who lie.

There are biases.

There is propaganda.

There are interpretations that survive testing and others that do not.

A multiperspectival approach does not require abandoning criteria.

It requires broadening what we examine before judging it.

Instead of asking only “Who is right?” we can also ask:

What is each person observing?

What information does each one have?

What concepts are they using?

What assumptions are going unstated?

What scale is being considered?

What consequences does each person value?

What earlier experiences make a particular explanation seem more plausible to them?

At exactly what point does the disagreement begin?

Those questions do not replace the decision about what is true.

They make the decision less lazy.

Disagreement as a Tool

Something interesting changes when we stop treating disagreement merely as an obstacle.

It can become a tool of inquiry.

Einstein challenged Bohr’s interpretation for decades. His objections helped expose deep problems in quantum theory and contributed to questions that would keep producing physics long after the famous discussions at Solvay.

Disagreement did not prevent knowledge.

In part, it helped produce it.

Plato and Aristotle did not leave history a single, perfectly harmonized body of thought. They left different traditions that continued to engage, compete, and change for more than two thousand years.

Freud and Jung did not work out a definitive theory of the mind together. Their separation opened different paths of inquiry and influence.

Perhaps there is a useful reversal here.

When two intelligent people disagree, our first reaction is usually to try to eliminate the disagreement.

Perhaps we should examine it first.

Disagreement may indicate that the object has dimensions a single representation is not capturing.

It may reveal hidden assumptions.

It may show that two different questions were being mistaken for one.

It may reveal a conflict of values where we thought we had a conflict of facts.

It may show differences of scale.

It may, of course, simply show that someone made a mistake.

But even finding that out requires inquiry.

The Third Observer

Let us return to Einstein and Bohr’s imaginary room.

This time we will not put Aristotle in it.

We will put you there.

Your situation has become considerably worse, because both of them are waiting for an opinion.

There is a comfortable way out: pick the side that seems to have more scientific support today and announce the winner.

But there is another possibility.

Instead of immediately joining the dispute, you can observe the dispute.

You can ask what Einstein is trying to preserve in his conception of reality.

You can ask what Bohr is willing to abandon.

You can see that they are not merely offering different answers. They are working with partly different expectations about what a satisfactory answer needs to do.

At that point, you are no longer merely the third participant.

You have become an observer of perspectives.

And that changes the object of inquiry.

Before, the object was quantum mechanics.

Now it includes Einstein, Bohr, quantum mechanics, the history of physics, the concepts being used, the criteria for explanation, and the relationship between observer and problem itself.

The field has grown.

Naturally, it has also become more difficult.

Reality tends to have that flaw when examined closely.

From Physics to Sunday Lunch

We can now return Aristotle to Greece, let Einstein and Bohr get back to their discussion, and return to a more familiar situation.

Two people are arguing.

It might be about politics.

It might be about economics.

It might be about raising children.

It might be about which route to take on a trip, a subject on which perfectly civilized human beings can regress several thousand years in a matter of minutes.

One says:

“It’s obvious.”

The other replies:

“Exactly. It’s obvious that you’re wrong.”

The word “obvious” deserves special attention.

Often it means nothing more than: within the representation I have built, this conclusion comes so easily that I can no longer see the premises that led me to it.

For the other person, other premises may be equally invisible.

So the two argue about conclusions while part of their disagreement is hidden several floors below.

That is why increasing the intelligence of the participants does not necessarily eliminate disagreement.

A very intelligent person may be better at examining assumptions.

But they may also be extraordinarily skilled at defending a structure they have already built.

Intelligence provides tools.

It does not, by itself, determine where they will be aimed.

Perhaps Einstein and Bohr are such a powerful example for precisely that reason.

We cannot resolve the story by diminishing either man.

We need to expand our explanation.

There is another detail that tends to remain hidden when we look only at the final conclusion. Intelligent people are not merely capable of constructing sophisticated arguments. They can also recognize problems where others might not even see a question.

That means two extraordinary minds can diverge even before they reach an answer: they can disagree about which question really matters.

That is how we started with particles, probabilities, and two physicists. Before we knew it, we were talking about biography, language, values, relationships, history, and family lunch.

Physics did not change the subject.

We widened the frame.

Disagreeing Is Not Failing

There is a curious expectation that rational, sufficiently informed people should inevitably converge.

With some problems, that happens.

If we are calculating the area of a rectangular plot of land and agree on the measurements and the math, a persistent disagreement probably means someone hit the wrong button on the calculator.

But many human problems do not have that structure.

They involve incomplete information, complex systems, different scales, uncertain forecasts, competing values, and unevenly distributed consequences.

Asking which economic policy is best is not equivalent to calculating 7 × 8.

Before answering, we need to ask: best for whom? Over what period? Measured by which variable? Growth? Employment? Inflation? Distribution? Stability? Freedom of choice? Security?

Two people may agree on many facts and disagree because they are optimizing for different things.

Sometimes an apparently factual argument is partly an argument about values.

Other times the reverse happens: we treat as mere “opinion” a question for which evidence can rule out some answers.

Multiperspectival analysis does not solve everything with a collective epistemological group hug.

It merely requires us to work out what kind of disagreement we are facing before we start sorting it into boxes labeled right and wrong.

Perhaps We Are Asking the Wrong Question

We arrive, then, at a slightly uncomfortable possibility.

Perhaps highly intelligent people disagree not despite being intelligent, but, in some cases, because they can build sophisticated models from different perspectives.

The greater the capacity for elaboration, the richer the representation can be.

And rich representations need not be identical.

This does not mean that intelligence necessarily produces disagreement. It simply means that intelligence does not turn us into observers without a standpoint.

And now we can finally pick up the observation we left at the beginning.

Einstein’s position came from Einstein. Bohr’s came from Bohr. Aristotle’s emerged from a history that included twenty years alongside Plato. Jung disagreed with someone who had been a teacher, a guiding figure, and an intellectual ally. And the uncle at lunch arrived at the table with an entire biography before he got to the main course.

It seems obvious once it has been said.

Perhaps that is precisely why we spend so much time forgetting it.

Einstein was still Einstein when he thought.

Bohr was still Bohr.

Aristotle spent twenty years with Plato and did not come out as a particularly efficient copy of his teacher.

Jung did not stop understanding Freud when he began to disagree with him.

In all these cases, the relationship between the minds is as interesting as the relationship between the ideas.

Perhaps that is the point we miss when we turn great intellectuals into marble busts.

They were people.

With biographies.

With relationships.

With intellectual preferences.

With irritations.

With intuitions.

With sleepless nights spent trying to answer someone’s argument.

Bohr literally had to sleep on some of the problems Einstein posed.

It is reassuring.

Sometimes even a Nobel laureate needs to get back to you tomorrow.

What Should You Do When Someone Intelligent Disagrees with You?

Perhaps the first thing is to resist the temptation to reduce the person’s intelligence until it fits our explanation.

The second is to find out where the disagreement really begins.

Do you disagree about the facts?

About the interpretation of the facts?

About the concepts?

About the scale?

About the values?

About the goal?

About what you consider a satisfactory explanation?

Or are you simply using the same words for different things?

After that, there may still be disagreement.

And that is all right.

Einstein and Bohr did not need to issue a joint statement declaring that each was 50 percent right for their discussions to be intellectually fruitful.

The value also lay in the pressure each perspective exerted on the other.

A good opposing perspective works as a kind of stress test.

It finds the places where our representation is fragile.

That is why talking only to people who agree with us is cognitively comfortable and intellectually expensive.

Our ideas stop encountering obstacles.

And ideas that never encounter obstacles can develop self-esteem considerably greater than their quality.

Perhaps Disagreement Is Part of the Method

Original Reality Theory begins with a recurring concern: no individual perspective exhausts what it attempts to represent.

That does not make all perspectives equivalent.

It makes comparison between perspectives a tool.

We can observe a phenomenon physically, historically, psychologically, economically, socially, biologically, or philosophically.

Each frame reveals relationships and also creates limits.

The mistake begins when we forget the frame and start treating it as though it were the entire phenomenon itself.

Einstein and Bohr offer an extraordinary starting point because the difference appears within physics itself.

Plato and Aristotle show that it can extend across entire conceptions of reality and knowledge.

Freud and Jung show that ideas also live within human relationships.

And Sunday lunch shows that we do not need a Nobel Prize to reproduce the structure.

The difference is that, at lunch, people rarely wait until the next morning to work out a response.

Perhaps we should learn something from Bohr.

In the end, the initial question remains.

Why do highly intelligent people disagree?

Because intelligence is not a frameless window opening directly onto reality.

Every observation begins from some position.

Every explanation selects relationships.

Every mind arrives with a history.

Every field builds its own tools and questions.

Every representation illuminates something and leaves something else out.

And when two representations do not coincide, the disagreement may be an error—but it may also be a rare opportunity to see the limits of both.

Perhaps that is why the more interesting question, when faced with someone who has reached a different conclusion, is not immediately:

“How can he be so wrong?”

Perhaps it is:

“What is he seeing that I cannot see from here?”

And then, after looking from that place, we can return to our own position.

Perhaps we will change our minds.

Perhaps not.

Einstein did not.

Bohr did not either, at least not in quite the way Einstein wanted.

And almost a century later, we are still talking about the conversation.

Which, considering how many arguments produce nothing beyond two irritated people and a family group chat that goes silent for three days, is already a fairly respectable result.

Research Notes

The passages on Einstein and Bohr draw on historical accounts from the Niels Bohr Institute and the American Physical Society concerning the Solvay Conferences, the principle of complementarity, Einstein’s objections, and Bohr’s responses. The humor and imagined scenes are narrative devices; they should not be mistaken for historical transcripts.

The passage on Plato and Aristotle draws on their historically established relationship as teacher and student and on Aristotle’s roughly twenty years at the Academy. The image of the two discussing a tree is deliberately fictional.

The passage on Freud and Jung summarizes widely documented disagreements in their intellectual relationship. The article does not attempt to adjudicate the contemporary clinical validity of their theories, but to observe how a close intellectual relationship can produce profound disagreement.