The Evaporation of Expert Power: A Structural Change Impossible to Ignore

Why Domain Mastery is not just the next shift. It is a different game entirely.

For most of my professional life I have worked at the intersection of power, influence, and organisational politics. The difference between those who hold ground and those who lose it is rarely intelligence or effort. It is almost always a question of where their power actually came from.

That question has never mattered more than it does right now.

What French and Raven saw

In 1959, John French and Bertram Raven identified five bases of social power. Reward. Coercive. Legitimate. Referent. Expert.

Each describes a different source of influence over others. Each has its own dynamics, its own vulnerabilities, and its own conditions for survival.

Expert power was always the most structurally fragile of the five. It did not rest on position or authority. It did not depend on the ability to reward or punish. It rested on a single condition: a perceived gap between what the expert knew and what those around them could access.

That gap was the power. The knowledge was the commodity.

For decades, in almost every major organisation, that gap held. The cost of closing it was prohibitive. Senior professionals who commanded genuine domain knowledge were indispensable to the executives who needed it and could not replicate it. That indispensability was the source of their authority, their commercial value, and in many cases their professional identity.

For most of that time, it was a sound foundation.

It is no longer sound in the same way.

The first attack

The internet did not destroy expert power. It narrowed the gap for the first time at scale.

Previously unavailable knowledge became accessible to anyone with a search engine and the patience to use it. But the internet created a new problem for everyone else. Knowledge was suddenly abundant. Making sense of it was not. The volume of available information outpaced most people’s ability to assimilate and analyse it.

Most experts adapted instinctively. They shifted their power base from information holding to diagnosis and interpretation. While others were drowning in data, the expert could synthesise, make sense of complexity, and deliver conclusions the non-expert could not easily reach alone. 

That capability became the new source of indispensability. And it held, because analysis and synthesis remained genuinely costly and difficult to replicate.

Until now.

The second attack

AI has reached the territory experts retreated to after the internet.

It retrieves. It synthesises. It increasingly replicates the diagnostic and analytical functions that became the expert’s second line of defence. The retreat route that worked once is no longer available in the same form.

The people sitting around the expert now have access to something they did not have before. Not expertise of their own. Something more disruptive than that. The ability to generate informed challenges at the edges of the expert’s knowledge, quickly, credibly, and without sustained study.

Where the expert was once questioned in general terms, they are now being tested with precision. Not ‘are you sure about that?’ but ‘what about this specific counterargument, how does this body of research bear on it, what would your position be if this variable changes?’

For the expert whose command of their subject was built on relative advantage rather than complete command, this is a new and uncomfortable exposure. The edges of their knowledge are visible in ways they have not been before.

This is not a cyclical shift. It is structural. The gap that took decades to build is being eroded in months. And unlike the internet, which created new complexity that experts could exploit, AI is doing something different. It is making the synthesis function itself accessible. The work experts turned to when information became abundant is now being absorbed by the same technology that made information abundant in the first place.

The evaporation is not uniform. In highly regulated, high-stakes domains where accountability and accumulated judgement carry legal or institutional weight, experienced professionals retain ground that AI cannot yet credibly occupy. But those domains are narrowing. And the professionals who believe their field is permanently protected are making the same assumption their predecessors made before the internet arrived.

What evaporation means

The word evaporation is deliberate.

Evaporation is not erosion. Erosion is gradual, visible, and leaves something behind. Evaporation is a phase change. The asset that existed in one form simply ceases to exist in that form when conditions change sufficiently.

That is what is happening to expert power built on relative advantage. It is not declining. It is changing state.

The professionals losing ground in rooms they once commanded without effort are not experiencing a bad run. They are experiencing the predictable consequence of a power base whose conditions for survival have changed structurally. The cause is not a difficult audience. It is not a subject that moved too fast. It is a phase change in the economics of knowledge.

PwC’s 2026 Global AI Jobs Barometer, which analysed over a billion job postings across 27 countries, found that AI-exposed roles now demand capabilities previously associated with senior professionals: judgement, leadership, strategic thinking, adaptability. 

The market is not simply replacing knowledge work. It is raising the standard for what human contribution needs to look like. That is the evaporation of expert power made visible in hiring data.

Why Domain Mastery is not just the next shift

Some will argue that Domain Mastery is simply what experts do next. The same structural shift that happened after the internet. Expert power finding a new expression. That argument is wrong for a precise reason.

After the internet, experts moved to diagnosis and synthesis. Those were still forms of knowing more than those around them. The gap narrowed but the power structure remained intact. Expert power simply found a new expression and survived.

Domain Mastery is not another expression of expert power. It is a different power base entirely.

The domain master is not indispensable because they know more than those around them. They are indispensable because they hold complete command of a terrain in a way that produces original thought. 

That is structurally different from holding a knowledge gap over dependants. It does not depend on what others cannot access. It depends on what the domain master can see that nobody else, including the most sophisticated AI tools currently available, can reach.

Complete command of the full terrain of a field. The ability to see connections that do not yet exist as explicit knowledge anywhere. The judgement to navigate situations that have no precise precedent. The capacity to identify where established thinking is wrong in ways no data yet captures.

These are not information retrieval problems. They are map-holding problems. The domain master holding that map is not protecting a position. They are occupying territory that the commoditisation of knowledge cannot reach, because the map is not held as information. It is held as understanding.

The distinction between the two is precisely what the current moment is making visible.

In April 2026, Apple’s board appointed John Ternus as Chief Executive Officer. Ternus joined Apple in 2001 as a mechanical engineer and has been at one company for twenty-five years. The board passed over leaders running software, services, and AI divisions. They chose the person with the deepest mastery of the most strategically critical domain the company faced. It is one signal among many. But it is worth reading carefully.

The question the current moment is asking

Expert power built on relative advantage worked under specific conditions. Those conditions have changed. The professionals who recognise that earliest, and build their position on a different foundation, are the ones who will hold ground when those around them cannot account for why they are losing it.

The foundation that holds under current conditions is not expertise taken further in the conventional sense. It is something built on complete command of a deliberately chosen terrain. That is a different standard entirely, and the gap between the two is becoming visible in rooms where it was never visible before.

Colin Gautrey, June 2026

Colin Gautrey writes for executives and senior experts who sense the ground shifting.

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