Your Company Runs on Half a Brain

What McGilchrist has been trying to tell us

This is a co-authored essay by Nienke van Bezooijen and Mario Haneca. It grounds the question of how organizations should navigate the AI era in the two-hemisphere research of Iain McGilchrist, applied to the boardroom. Published 2 October 2026.

For years I have watched leaders reach for a language they did not yet have — a way to describe the intelligence they could sense in a room but could not name in a boardroom. Then I encountered the work of Iain McGilchrist, the psychiatrist and philosopher who spent decades at Oxford studying the brain. His two monumental books — The Master and His Emissary (2009) and The Matter with Things (2021) — gave me, and now the leaders we work with, the vocabulary that had been missing.

McGilchrist's central claim is deceptively simple, and radical in its consequences: the way we pay attention to reality shapes what we see, what decisions we make, and ultimately what world we create.

His insight is not the pop-psychology cliché that "left brain equals logic, right brain equals creativity." His claim is much more precise. Both hemispheres are involved in every human function. What differs is how they approach reality.

The left hemisphere is designed for narrow focus, acquisition, and control. It grasps parts. It abstracts. It measures. It reduces the whole to categories it can manipulate. It is, in McGilchrist's phrase, a brilliant instrument — but a dangerous master because of the narrowed focus **.

The right hemisphere is designed for awareness, context, relationships, meaning. It sees the whole. It holds paradox. It notices what is new, subtle, or emerging. It stays connected to the living reality that the left hemisphere is busy dissecting.

Both are necessary. Neither is superior on its own.

The problem, McGilchrist argues, arises when the analytical mode stops returning to the larger whole. When the emissary — the useful servant sent out to gather and organize information — becomes the master who insists his partial view is the entire truth.

That is exactly what has happened to the modern boardroom.

What that looks like when you sit in one

Mario:

For thirty years I have watched boardrooms operate. And what Nienke has just described — the emissary becoming the master — is the pattern I have seen play out too many times to call it coincidence.

We manage on spreadsheets. We steer by KPIs. We optimize by protocols. We reduce complex human systems to metrics we can control. And we increasingly mistake the representation of reality for reality itself.

Employee engagement = 7.4.

That number tells us something. It is not the engagement of your employees.

NPS = 43.

That number tells us something. It is not the actual relationship between your customers and your organization.

McGilchrist's diagnosis fits the modern boardroom the way a key fits a lock: the map has become more real to us than the landscape it was drawn to describe.

The map has become more real to us than the landscape it was drawn to describe.

Boards have become brilliantly optimized for reading the map. And structurally blind to the landscape.

That is what running on half a brain looks like from inside a boardroom. It is not that leaders are unintelligent. It is that the intelligence they have been trained to trust — measured, abstracted, disaggregated — is only half of the intelligence available to them.

The AI accelerator problem

Nienke:

Before we explain what the second half of the brain gives your organization, we need to explain why the timeline for installing it has compressed.

Modern society, and now AI as its multiplier, is systematically reinforcing left-hemisphere dominance. Everything about our attention economy, our productivity metrics, our optimization tools, our platform architectures — pulls harder toward narrow focus, acquisition, and control. And away from awareness, context, and connection.

AI isn’t designed to correct this imbalance. It accelerates it.

Every AI tool your organization adopts is, structurally, a left-hemisphere amplifier: pattern recognition on defined datasets, optimization within given parameters, faster execution of narrow tasks. Extraordinary at what it does. Blind to what it does not.

Which means the very layer of intelligence that would allow humans to remain the coherent center of an AI-augmented organization — the right-hemisphere layer that reads context, senses coherence, holds meaning — is the layer being quietly starved just as the pace of everything else compounds.

Mario:

Boards do not see this because their dashboards are also left-hemisphere instruments. They measure what has been acquired, not what has been sensed. And so the gravity of the obsolete operating system keeps growing, invisibly, while everyone reports quarterly progress.

The emissary has fully taken over. The master is barely audible.

Why "upgrade" is the wrong verb

Mario:

The instinctive response, when we recognize a system is failing, is to upgrade it. Add features. Improve modules. Patch the weaknesses. Educate and train people to match the numbers

That instinct is wrong here.

A left-hemisphere-dominant operating system upgraded with more left-hemisphere-based tools remains a left-hemisphere-dominant operating system. It runs faster. It processes more. It burns out its people slightly earlier. But honestly? The fundamentals do not change.

You cannot upgrade your way out of this.

What is required is a system shift. Fundamentally different from an upgrade of the old. It is the reactivation — the reinstallation — of the second half of the brain in the daily operating logic of the organization. Analysis returning to synthesis. Metrics returning to meaning. The emissary returning to the master's service, rather than the reverse.

This has a name. It is called heart intelligence.

Heart intelligence, precisely

Nienke:

We want to be careful here, because "heart intelligence" gets diluted quickly in leadership literature.

It is beyond just "emotional intelligence" (EQ). EQ is about recognizing and managing emotions. Useful, but still a left-hemisphere-based operation.

It is not "empathy." Empathy is one output of heart intelligence; not the thing itself.

Heart intelligence is the operational capacity to sense information that has not yet reached the analytical mind — and to communicate with others through channels that do not require full verbal explanation. It is the right hemisphere doing its structural job: reading context, tracking relationships, noticing what is emerging, holding the whole, connecting the dots. While the left hemisphere handles the parts.

The heart is central here because, physiologically, the heart sends more signals to the brain than the brain sends to the heart. HeartMath Institute has spent thirty-five years documenting the measurable coherence patterns this creates — patterns you can literally see on an ECG. This is proven science~~.~~ This is measurable neurocardiology.

The heart is also, in a way most Western business thinking has forgotten, an involuting and evoluting organ. It sends information into the field around it, and it retrieves information from that field. When multiple hearts in a coherent state are in the same space — physically or across a well-tuned digital connection — they exchange information at speeds no meeting agenda can match. It is contagious and affecting other peoples HRV without verbal communication.

Mario:

In organizational terms, that means heart intelligence is what allows a team to know something is wrong before the metrics catch it. It is what makes a boardroom feel aligned or misaligned before the vote is called. It is what lets an experienced leader walk into a client meeting and sense, within thirty seconds, what is actually being negotiated beneath what is being said.

If you want to know why the best leaders you have ever worked with could align a room in ten minutes what would take others a day: this is why. They were operating from the second hemisphere. They had never stopped listening to the dominant master.

The AI-era necessity

Mario:

Here is the strategic reveal.

If organizations are going to remain the coherent center of AI-augmented work, they cannot afford to keep the human communication layer running on twenty hours of meetings per week. That pace was already burning people out before AI arrived. In an AI-accelerated environment, it becomes the actual bottleneck.

Communication needs to happen in the informal, unseen layers. That level of intelligence happens on what we might call the collective mind — but the collective mind, as it currently operates in most organizations, is fear-driven. It transmits anxiety faster than it transmits insight. Left unchanged, that layer will simply amplify the very dysfunction we are trying to escape.

What is required is an upgrade of the collective mind to the collective heart layer.

The collective heart is faster. It is more intelligent. It is connected to the purpose and legacy fields of the organization — meaning it carries context that no dashboard can encode. It communicates without requiring full verbal decoding. It adjusts in real time.

And critically: it stays human. AI can assist an organization operating from the collective heart. AI cannot replace it. The core intelligence remains in the heart and soul of the organization, linked to the humans who compose it.

Organizations that install this second layer will out-adapt organizations that do not. Not by a small margin. By the kind of margin Sisodia, Sheth and Wolfe documented over fifteen years in Firms of Endearment: 14x the S&P 500 return for stakeholder-integrated companies over 1998–2013. The evidence has existed for over a decade. What has been missing is the operational vocabulary for how those firms actually differ. Heart intelligence, installed as operating principle, is a large part of the answer.

The most consequential boardroom decision

Mario:

Boards insure their organizations against many things. Cyber attack. Geopolitical disruption. Key-person loss. Directors and officers liability. Business continuity.

Boards do not currently protect their organizations against the risk that ultimately determines whether they still exist in fifteen years: the risk that their operating system is quietly obsolescing while they optimize its surface.

The AEX Futureproof Index research from Rotterdam School of Management, Nyenrode, and ftrprf made this measurable last year. When social and ecological impact is calculated in hard euros, the top 23 AEX-listed companies collectively cost society 30% more than they yield. High financial return, low future readiness. Debt being accumulated against the future — against employees, against the environment, against the meaning fabric that sustains the whole thing.

That is what a single-hemisphere operating system does at scale. It converts sustainable value into structural debt, without alerting the board that it is happening — because the instruments measuring the situation are themselves single-hemisphere instruments. They cannot detect the layer where the debt accrues.

Nienke:

Reinstalling the second half of the brain—as an operational principle, not just another workshop or training—is the pattern-recognition organ that senses this drift before it hits the metrics. It is the sensor that registers when talent is quietly withdrawing before they hand in notice. It is the field-scanner that recognizes when a client relationship is losing coherence before the contract is not renewed.

This isn’t another soft skill. This is structural.

The premium is attention: dedicated time, sustained practice, willingness to let the right hemisphere do the work it was designed for. The payout is what we have taken to calling the three-factor legacy equation — soul mission, company purpose, and unique contribution, compounding into outcomes that no purely single-hemisphere organization can produce.

What this looks like in practice

Mario:

Pieter Hemels rebuilt his company in New York around exactly this operating principle. He now has a waiting list of applicants. He turns down assignments that do not fit the frequency his organization now operates at. His revenue has not suffered. His clarity has increased.

That is what a two-hemisphere organizational operating system looks like when it stops being theory and starts being architecture.

Nienke:

Don’t let your mind lead you to believe this requires an all-at-once revolution in your organisation. You don’t need to replace what currently works. It requires — slowly, steadily, coherently — reactivating the second layer of intelligence beneath the analytical layer that most organizations run on today. Reactivating the right hemisphere. Building the collective heart. Widening the frequency band from which decisions get made.

Organizations that do this will be the ones still standing, still relevant, still able to attract the talent and capital and trust required to build what comes next.

Organizations that do not will keep upgrading their obsolete operating system, faster and faster, until the day the gravity finally wins.

The decision is available now

At The Indigo Elephant, everything we do sits inside this insight. The scans that read the systemic layer beneath the dashboards. The advisory work that helps leaders install heart intelligence as operational principle, not as workshop content. The Activator Network gathering the practitioners who already carry this frequency into their own client work. The Summit last month where five voices — Bob de Wit, Deborah Henderson, Lance Diaresco, Pieter Hemels, Esther Wagelaar — showed what this looks like when it is fully embodied.

We know we are not the only ones building this. But we are among the very few doing it with the operational discipline that boards can actually trust.

If your organization is starting to feel the gravity — if strategies are landing softer than they used to, if senior talent is quietly leaving, if the numbers still look good but something in the field is off — the decision is available. The premium is attention. The choice is a shift in operating principles, from a single hemisphere to two, from acquisition alone to acquisition-and-awareness, from focus to focus-and-field.

The old is crumbling on schedule. The new is being built by those with the eyes to see it and the practices to hold it.

The heart is one of those practices. Perhaps the most important one.

McGilchrist called the current situation the unmaking of the world. He was not being dramatic. He was being clinical. He is using both hemispheres.

The unmaking is happening. The remaking is available.

The decision is yours.

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Nienke van Bezooijen and Mario Haneca are Founding Partners at The Indigo Elephant, an advisory firm walking beside CEOs, boards, and founders building organizations worthy of what humanity is becoming. Nienke brings decades of experience in heart intelligence and organizational sensing. Mario brings thirty years of boardroom advisory. Together with co-founder Elsbeth Van Lienden, they work with leaders navigating the transition to the meaning economy.