ESSAY
What Are We Building Towards When We Build Brain Capital
An offering to the Brain Capital movement on human agency and the conditions through which capacity becomes action
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March 1, 2026
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12
min read
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Notes on Human Agency (Substack)
Having capability isn’t the same as being able to use it.
Brain Capital gives us a powerful language for investing in brain health, cognition and skill.
This essay asks what comes next:
What turns human capacity into practical possibility?
It introduces the idea of practical opportunity: the room people have to use what they know, exercise judgement and participate in shaping their own lives.
Capacity is only part of the picture
A person can have knowledge, skill and health and still find their ability to act narrowed by what surrounds them.
Time may be missing.
Authority may sit elsewhere
Systems can make coordination harder than the work itself.
In those situations, the issue isn’t simply what the person holds.
It is whether there is enough room to use it.
Practical opportunity changes the question
Capacity asks what a person can do.
Practical opportunity asks whether the surrounding conditions allow that capability to become action.
The distinction matters because a lack of capability and a lack of opportunity call for different responses.
Training may help one.
It won’t necessarily repair the other.
The paper therefore asks Brain Capital to look beyond what people possess and towards the circumstances in which those capacities must be exercised.
Are we building capability, or also building the conditions in which it can be used?
Inside the paper
The essay develops the distinction between capacity, practical opportunity and agency, then considers what that means for Brain Capital, institutions and policy.
It also proposes ways these relationships might be examined rather than simply assumed.
What are we building towards?
A brain-positive economy can’t be judged only by the capacities it creates.
It must also ask whether people retain the practical room to exercise those capacities in shaping their own lives and the worlds they share.
WHERE THIS SITS
The Brain Commons
This essay belongs to The Brain Commons — a lens on the shared conditions that sustain or deplete human agency.
Continue the sequence
What Are We Building Towards When We Build Brain Capital
Individual capacities are real. But they are not privately produced, and they cannot be protected by asking individuals alone to adapt. The central claim of the work, made at human scale.
Where Will Judgement Live?
On AI and persuasion — and on flattery, the most intimate and least visible form of cognitive capture: a machine returning a sharpened image of your own thinking, faster than you could make it yourself.
The Brain Commons
Human agency, shared stewardship, and the ecologies that shape us
What if the struggle we see in a person is also telling us something about the world around them?
The Brain Commons puts the person and their surroundings back in the same picture.
It asks how relationships, work, technology, care and institutions shape what someone can actually do, and what responsibility follows once those influences become visible.
Where Will Judgement Live?
What AI implementation does to the capability it depends on
AI can improve performance while quietly reducing the human practice that future judgement depends on.
Most implementation measures tell us whether the system works.
Far fewer ask what people stop learning once it does.
The conversation around this essay continues on
Bring the work into the room.
Some of this work belongs in rooms where decisions are made: universities, health systems, public institutions, leadership teams, conferences, committees and organisations holding a hard question.
David is available for keynotes, panels, lectures, webinars, facilitated enquiries, advisory conversations and collaborative work where questions of human capability, brain health, AI, judgement, care and institutional conditions are in play.
Human capability, agency, attention, care and the conditions that shape us.
Brisbane, Australia
This work is written on the lands of the Turrbal and Yagara peoples. I acknowledge their custodianship of Country and their elders past and present, and the truth that the conditions I write about — attention, care, participation, stewardship — have been practised on these lands for tens of thousands of years.
