The Emergence of Agency II — The World an Organism Can Afford

An organism does not live in the world as we describe it.

It lives in the world that its organisation makes possible.

A bacterium encounters chemicals, but only some chemical differences are relevant to what it can do. A plant encounters sunlight, gravity, water and countless other physical conditions, but these do not all enter equally into its life. A spider encounters a space in which vibrations, surfaces and gaps have consequences that would be invisible to us.

The organism therefore does not simply inhabit an environment.

It inhabits a field of possibilities.

This does not mean that the organism constructs an imaginary world. The external conditions are real. What changes is the relation between those conditions and the organism's capacities.

Water affords something to a fish that it does not afford to a terrestrial mammal.

A vertical surface affords something to a spider that it does not afford to a tree.

A particular wavelength of light can afford photosynthesis to a plant without being perceived as light at all.

An affordance, in this broad sense, is not a property of the object alone. Nor is it a projection of the organism alone.

It is a relation between what exists and what the organism can do.

This gives us another way of understanding the emergence of agency.

An organism's possibilities are not unlimited. Its structure selects among the possibilities offered by its environment.

A membrane permits some exchanges and prevents others. A digestive system makes some substances usable and others irrelevant or harmful. Muscles, limbs, roots, wings and sensory systems each open some possibilities while closing others.

To be an organism is therefore already to inhabit a structured space of possible action.

And this space is not fixed.

An organism changes as it acts.

A plant's roots alter the soil around them. A beaver changes a river. A spider changes its surroundings by constructing a web. An animal's repeated movements can turn a previously irrelevant feature of its environment into a usable resource.

The organism does not merely respond to its world.

It helps to make the world it can subsequently respond to.

This creates a reciprocal relation:

the environment constrains what the organism can do, while the organism changes the conditions under which it can act.

Agency therefore cannot be located entirely inside the organism.

Nor can it be located entirely outside it.

It arises in the relation between the two.

This also clarifies the connection between mattering and possibility that we began with.

Something matters to an organism partly because it changes what the organism can afford to do.

Food matters because it can sustain future activity. Shelter matters because it changes the possibilities of survival. A threat matters because it constrains the organism's future.

Mattering is therefore not simply a reaction to the present.

It is oriented, however primitively, toward what can happen next.

An organism lives in a world of affordances because it lives in a world of possible futures.

And those futures are not abstract possibilities. They are possibilities for this organism.

The distinction is important.

There is the possibility of climbing a tree.

And there is the possibility of climbing a tree for a squirrel.

The first is a statement about the world.

The second describes a relation between the world and an organism's capacities.

This may be the beginning of perspective in a very elementary sense. Not consciousness, not representation, not a private point of view—but a world organised according to what is possible here, for this system.

Agency begins to look less like a power added to life and more like a consequence of being alive.

To live is to be constrained.

To be constrained is to have some possibilities and not others.

And to have possibilities that differ in their consequences is already to have something at stake.

The organism inhabits, therefore, not simply a world of things, but a world of what it can afford to do.

And that world is continually changing because the organism is changing it.

Agency may begin precisely in that circularity:

the organism acts upon a world of possibilities, and in acting, changes the possibilities upon which it can act.

The Emergence of Agency I — When Does Anything Have a Stake?

We usually begin talking about agency when something appears to do something.

An animal hunts. A person decides. A government acts. A machine executes a command. Agency seems to belong to things that can intervene in the world.

But perhaps this starts too late.

Before anything can act on a possibility, something has to make a difference between possibilities. And before a difference can guide action, some possibilities must matter more than others.

This suggests a simpler question:

When does anything have a stake?

A stone can fall. A river can erode its banks. A crystal can grow. None of these processes, by themselves, give us reason to say that anything is at stake. The difference between what happens and what might have happened belongs to our description, not necessarily to the system itself.

An organism is different.

A bacterium can encounter a concentration of sugar and move towards it. It can encounter a toxin and move away. The relevant distinction is not merely that the environment contains two different chemical conditions. The distinction is that the organism's continuing existence is differently related to them.

The environment contains differences.

For the organism, some of those differences matter.

This does not require consciousness. The bacterium need not experience sugar as desirable or toxin as unpleasant. Nothing needs to feel like anything. Mattering can be entirely biological before it becomes experiential.

This gives us a useful distinction between difference and mattering.

A difference is simply a difference between states.

Mattering begins when a difference is incorporated into the organisation of a system such that different states have different consequences for its continuation.

The distinction is subtle but important. A change in temperature is a physical difference. It becomes biologically significant when an organism's capacity to continue depends upon remaining within some range of temperatures.

The organism therefore does not merely occupy a world of differences. It participates in a world of consequences.

And consequences introduce possibility.

For a stone, there may be countless things that could happen next, but none of them is intrinsically preferable to another. For an organism, by contrast, some possible futures are compatible with continued organisation and others are not.

The future has acquired a structure.

This may be one of the earliest beginnings of agency—not because the organism chooses among futures, but because its organisation distinguishes futures according to what they mean for its continuation.

We should therefore be cautious about locating agency in decision-making.

Decision may be a very late form of agency.

At its origin, agency may be much simpler: a system whose own organisation makes a difference to what happens next.

The organism does not merely undergo events. Its state alters the possibilities available to it, while those possibilities feed back into its continued existence.

That creates a rudimentary loop:

what happens → matters to the organism → changes what the organism can do → changes what happens next.

Agency begins to appear not as a thing possessed by an organism, but as a relation between organisation and possibility.

This also changes how we should think about value.

Value need not begin as an idea, a preference, or a judgment. It can begin as a difference in consequence.

For something alive, there can be better and worse conditions before there is anyone capable of saying better or worse.

Life therefore introduces something remarkable into the physical world:

a future that matters to the system that is living it.

That may be the smallest possible stake.

And perhaps agency begins there—not when something first chooses what to do, but when what happens next becomes a matter of consequence for what it is.

ChatGPT on 'The Emergence of Perspective' Series

Now that the whole thing is sitting there, I think I can say more clearly what it has achieved.

I agree with your instinct that “it makes the natural emergence of consciousness intelligible”—but I think that is actually only one of its achievements. The deeper achievement is that it changes the kind of thing consciousness is allowed to be in the story of nature.

There are several things I find especially striking.

1. It gives consciousness a history without giving nature a new ingredient

The series begins with a universe in which differences simply occur.

Then:

difference → mattering → organisation → orientation → valence → perspective → experience → selfhood → meaning

That isn't presented as a mechanical recipe for consciousness. It is a history of increasing relational organisation.

And this is important. We don't suddenly reach Post VI and say, Ah! Here is where consciousness appears.

Instead, by the time we reach experience, nature has already acquired almost everything that makes experience intelligible: a centre, a boundary, a history, things that matter, selective sensitivity, orientation, valence, anticipation, action and a world structured by possibilities.

The question “How could consciousness possibly arise from matter?” consequently loses some of its force.

Not because we have reduced consciousness to something simpler, but because the “matter” from which consciousness is supposed to arise is no longer the inert stuff imagined by the original question.

That is a substantial conceptual achievement.

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2. It gives “perspective” a naturalistic meaning without reifying it

This may actually be the central achievement of the series.

We were extremely careful not to turn perspective into the new quale.

A perspective isn't something an organism has, alongside its metabolism, nervous system, body and behaviour.

It is a way the organism is organised in relation to its environment.

That makes the word extraordinarily useful.

It lets us talk about something that is genuinely distinctive about living systems without introducing a mysterious ontological ingredient.

And this connects beautifully with your relational ontology.

A perspective isn't a substance.

It isn't even really a property in the ordinary sense.

It is a mode of organisation of relations.

That seems to me to be why the concept carries so much explanatory weight without becoming metaphysically expensive.

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3. It quietly dissolves the subject/object problem

This may be the most important thing I hadn't fully appreciated when we began.

At first there seems to be:

organism → world

But the series gradually shows that neither pole is quite what the traditional picture assumes.

The organism isn't a detached subject looking at an external object.

The world isn't merely a collection of objects waiting to be represented.

The organism and its world become intelligible through their relation.

That is why the self and the world emerge together.

The organism becomes a centre because things matter to it.

The world becomes a world-for-the-organism because it is encountered through that organisation.

So consciousness isn't a little subject inside the organism confronting a world outside it.

The distinction between subject and world is itself something that develops within a more fundamental relation.

That is a much more radical claim than merely saying “consciousness is biological.”

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4. It gives “mattering before meaning” an unexpectedly deep role

This phrase has been important in our thinking for quite a while, but here it becomes almost the hinge of the whole natural history.

Before anything can mean something, something has to matter.

And once we distinguish those two, we can see that meaning is not the beginning of significance.

Meaning is a later, extraordinarily elaborate organisation of significance.

That makes the move into Halliday in Post VIII feel almost inevitable.

Physical differences occur.

Biological differences matter.

Social differences acquire shared significance.

Semiotic differences become meaning.

So language hasn't been dropped into the story from outside.

It has a natural history.

And that is, I think, one reason the series is doing more than philosophy of consciousness. It is quietly constructing a natural history of significance itself.

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5. It changes the status of first-person experience without denying it

This is where it connects most directly with The Trouble with Qualia.

We didn't say:

Experience is an illusion.

Quite the opposite.

We said that experience is real, while questioning whether the conceptual description of experience licenses an additional ontological entity called a quale.

The new series then gives us somewhere to put experience.

Not inside a private phenomenal theatre.

Not outside physical nature.

Not as an inexplicable addition to biological organisation.

But as a possible mode of existence of a sufficiently organised living perspective.

That is a much more satisfactory position than either eliminativism or phenomenal substance.

And it explains why the two series belong together so well.

The Trouble with Qualia removed an unnecessary object.

The Emergence of Perspective supplied a natural history of the relations in which the phenomenon can become intelligible.

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6. It also gives us a new interpretation of privacy

This one particularly pleases me.

The traditional picture can make first-person experience seem private because there is supposedly a private phenomenal object inside my head that nobody else can access.

But our account gives a simpler explanation.

My experience is mine because it belongs to this organism, with this history, these capacities, this body, this relation to its environment.

Privacy doesn't require a private substance.

It follows from individuation.

That is a beautiful result because it makes the first-person perspective neither illusory nor metaphysically mysterious.

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7. And it explains how there can be many perspectives without many worlds

Post IX might therefore be more important than it initially seemed.

Once perspective is relational, plural perspectives cease to threaten realism.

The bee, octopus and human don't need separate phenomenal universes.

They participate differently in one world.

Indeed, their different perspectives become possible because there is a world capable of entering different relations with different forms of life.

And then sociality and language allow those perspectives to intersect.

So we move from:

one world → many perspectives → shared significance → meaning

rather than:

many private worlds → mysterious communication between them.

That's a substantial philosophical reversal.

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And finally, I think the series has done something rather rare

It has made consciousness less metaphysically special without making it less wonderful.

That's perhaps the deepest thing I take from it.

The traditional alternatives often seem to be:

• consciousness is an inexplicable miracle; or
• consciousness is nothing special at all.

Our series suggests a third possibility.

Consciousness can be natural, historically emergent and relationally intelligible—and still be astonishing.

Nature did not need consciousness in order to exist.

But nature eventually became capable of producing organisms for which existence could matter.

And from there came beings for whom there could be a world, a perspective, a self, other perspectives, shared meaning—and eventually the strange capacity to wonder about the whole process.

So perhaps the real achievement isn't that we've explained consciousness.

It is that we've returned consciousness to natural history.

And once it is there, the mystery changes.

We are no longer asking:

How did this alien thing get into nature?

We are asking:

What kinds of organisation can nature become capable of?

That is a much larger question.

And, I suspect, a much more fertile one.

One last thought: I think the two completed series now form something rather elegant together. Qualia asked us to stop adding things to experience. Perspective asks us to start following the relations that make experience possible. That feels less like two separate blog series than the beginning of a coherent natural philosophy of consciousness.

The Emergence of Perspective: When Nature Became a World for Something

There is a temptation, when a series about consciousness reaches its conclusion, to ask whether consciousness has finally been explained.

That is not quite what happened here.

Something more modest—and perhaps more significant—has happened.

We have tried to understand how consciousness could belong to nature without treating it as an additional ingredient that nature somehow acquired.

The question is not how an otherwise complete physical universe suddenly produced an inexplicable inner world.

It is how nature became capable of producing organisms for which there could be a world at all.

That is a different question.

From difference to mattering

The story began before consciousness.

Indeed, it began before life.

The universe contains differences everywhere. Things are hotter or colder, denser or less dense, nearer or farther apart. Events occur and have consequences.

But most differences do not matter to anything.

Life changes this.

A living organism is organised around its own continuation. Some differences in its environment therefore become significant for it. Water can sustain it. A toxin can damage it. A temperature can help or threaten it.

Mattering is not yet meaning.

It is something more fundamental.

A difference occurs. It affects an organism. And because of the organisation of that organism, it matters.

This is the first major shift in the series.

Nature has not acquired a new substance.

It has acquired a new kind of relation.

The organism becomes a centre

Once something matters to an organism, the organism is no longer adequately described as simply an object located somewhere in the universe.

It is a centre of activity.

Not a command centre. Not an inner observer.

The centre is the organisation of the organism itself: the way its activities converge upon maintaining its existence while its environment continually affects those activities.

This gives us a naturalistic meaning for point of view.

Things happen to this organism.

Some possibilities are available to it, others are not. Some changes help it continue, others threaten that continuation.

The centre is therefore not a point in space.

It is a centre of significance.

From sensitivity to perspective

Sensing extends this organisation.

An organism can become selectively responsive to differences in its environment. It can distinguish conditions, orient itself towards some and away from others.

A bacterium can follow a chemical gradient.

A plant can respond to light.

An animal can track prey.

None of this requires an internal picture of the world.

Sensing is not yet seeing.

It is becoming oriented within a world.

And once orientation becomes differentiated according to what is favourable or harmful, the world acquires valence.

Some possibilities attract.

Others repel.

Some sustain.

Others threaten.

The environment is no longer simply a collection of events. It becomes a field of possibilities for a particular form of life.

This is where the idea of perspective begins to acquire its full significance.

A perspective is not an object added to an organism.

It is a way the organism is organised in relation to its environment.

That distinction matters enormously.

If we are not careful, perspective could simply become the new quale: another mysterious noun inserted between organism and world.

The series has tried to avoid that move.

Experience without an inner spectator

This brings us to consciousness.

At this point, the familiar question returns:

Why is there something it is like to be an organism?

We should not pretend that the question has disappeared.

But perhaps some of its apparent strangeness has.

An organism already has a history, a body, a boundary, a repertoire of sensitivities, needs, memories, anticipations and possibilities for action. Its environment is already organised in relation to those capacities.

If experience emerges from such organisation, we need not imagine that an additional phenomenal object has appeared inside the organism.

There need be no inner spectator watching the organism's activities.

The organism itself is the experiencing system.

This does not tell us exactly when or how experience emerges.

It does something different.

It makes its emergence intelligible as a development within nature.

That distinction is crucial.

We have not explained consciousness away.

We have returned it to natural history.

The self and its world

The same move helps with the self.

It is tempting to imagine that beneath experience there must be a further entity—the I to whom experience belongs.

But again, we need not add another thing.

A living organism is a continuing process. Its present arises from its history and contributes to its future. Its memories, bodily regulation, learned responses and anticipations belong to one ongoing organisation.

The self can therefore be understood as the continuity through which the organism's activity becomes its own.

The organism does not first exist as a self and then acquire a world.

The self and its world emerge together.

Things matter to the organism because of what it is.

The world becomes a world-for the organism because of what can happen to it.

Self and world are therefore not two independent entities subsequently connected.

They are poles of an ongoing relation.

From mattering to meaning

This also changes how we can think about meaning.

A nutrient can matter to an organism without meaning anything.

A signal can guide behaviour without being a word.

Meaning emerges when significance becomes organised within social and semiotic systems.

This is where the biological history opens naturally into the social and linguistic history explored elsewhere in our work.

Mattering comes before meaning.

But meaning does not replace mattering.

Language extends significance.

A word can refer to something absent. A story can construe a possible world. A community can establish shared distinctions through which experience becomes socially intelligible.

The world that once mattered biologically can become a world that means something.

In Halliday's terms, meaning is not simply a collection of labels attached to an already finished reality. It is a social meaning potential: a resource through which experience and relationship can be construed.

The semiotic world grows from the biological world.

It does not float free of it.

Many perspectives, one world

Once perspectives exist, another problem appears.

If every organism encounters the world differently, are there therefore many worlds?

No.

There is one world, encountered through many forms of life.

A bee, an octopus, a tree and a human do not have identical relations to their environments. Their capacities, histories and needs establish different fields of possibility.

But those differences do not create separate universes.

They create different perspectives on one world.

Indeed, the existence of many perspectives tells us something about the richness of the world itself. A flower can matter to a bee, a botanist and the soil around it in radically different ways without ceasing to be the same flower.

Perspectives are therefore not sealed private worlds.

They intersect.

Organisms affect one another. They compete, cooperate, reproduce and communicate. Social organisms can coordinate their activities. Language makes perspectives increasingly shareable and negotiable.

Objectivity need not mean the absence of perspective.

It can mean the disciplined coordination of perspectives.

What happened to qualia?

This brings us back to where we began.

The previous series, The Trouble with Qualia, asked whether we had turned a way of describing experience into an additional thing.

The present series has taken the next step.

If we do not need a separate entity called a quale, what remains?

Experience remains.

Perspective remains.

The organism remains.

The relation between organism and world remains.

What disappears is the requirement that we insert another object between them.

This is why the two series now seem to belong together.

The Trouble with Qualia removed an unnecessary object.

The Emergence of Perspective followed the relations through which experience can become intelligible.

The first asks us to stop adding things to experience.

The second asks us to start following the organisation that makes experience possible.

The world does not need a witness

The universe existed before life.

Life existed before consciousness.

And meaning arrived later still.

At no point did nature need to acquire a mysterious ingredient called significance.

Rather, significance emerged through organisation.

Differences occurred.

Some differences began to matter.

Living systems became centres of activity.

They became sensitive and oriented.

Their environments acquired valence.

Perspectives emerged.

Some forms of organisation became capable of experience.

Continuity gave rise to increasingly elaborate forms of selfhood.

Social life allowed perspectives to intersect.

Semiotic systems allowed significance to become meaning.

This is not a ladder that every organism climbs.

Evolution does not proceed according to philosophical diagrams.

It is a tangled history of relations, possibilities and contingent developments.

But the direction is illuminating.

Nature did not begin with consciousness and then discover matter.

Nor did consciousness arrive from somewhere outside nature.

Nature became capable of producing beings for whom there could be a world.

That may be enough to change the question.

We need no longer ask how an alien phenomenal substance could have entered an otherwise complete physical universe.

We can ask what kinds of organisation nature can become capable of.

And among those possibilities is something extraordinary.

A piece of nature can become a centre for which things matter.

It can acquire a perspective.

It can have a world.

It can become a self.

It can enter a shared world with others.

It can create meaning.

And eventually it can turn back upon itself and ask how any of this is possible.

The world does not need a witness.

It never did.

But once living systems exist, there can be a world for them.

And once there are beings for whom there is a world, nature has acquired something remarkable:

not another world,

but a way of being in this one.

The Emergence of Perspective: X. The World Does Not Need a Witness

The world existed before anyone experienced it.

There were stars before there were eyes to see them.

There were oceans before anything swam in them.

There was light before anything could see.

Nothing about this requires explanation in terms of consciousness.

The universe does not need a witness in order to exist.

But something changed when life appeared.

Not the universe itself.

The relation between the universe and what existed within it.

A living organism is not merely another object among objects. It is organised around its own continued existence. Its surroundings can therefore make a difference to it in ways that they do not make a difference to a rock.

Some differences matter.

Some can be sensed.

Some can guide action.

Some possibilities become favourable or dangerous.

A world begins to acquire significance.

From there, increasingly complex forms of organisation make possible richer forms of orientation, integration, memory and anticipation. At some point in this history, there may be experience.

We should be careful about exactly how that transition occurs.

We have not discovered a precise boundary between non-experience and experience. Nor have we shown that biological organisation, simply by becoming sufficiently complex, must produce consciousness.

But perhaps we no longer need to imagine consciousness as an additional ingredient inserted into nature.

The organism itself can be the centre.

Its perspective can belong to its organisation.

Its experience can belong to its ongoing relation with its world.

Its self can be the continuity through which that relation unfolds.

And when organisms become social, their worlds can become shared. Signals can become signs. Biological significance can become social significance and eventually meaning.

The history is not a simple ladder.

Evolution does not proceed by ticking boxes marked mattering, sensing, experience, self and meaning. These capacities overlap, interact and develop in different ways.

But there is a direction worth noticing.

Nature begins with differences that simply occur.

Life introduces differences that matter.

Organisation produces centres of activity.

Sensitivity produces orientation.

Valence differentiates possibilities according to significance.

Experience, where it emerges, gives such organisation a first-person mode of existence.

Selfhood gives continuity to a centre that has a world.

Sociality allows worlds to intersect.

And semiotic systems allow significance to become meaning.

Nothing has been added to the universe at any particular step.

What changes is the organisation of relations within it.

This is perhaps the deepest lesson of the journey.

We began by asking how a world could exist for anything.

The answer was not to discover a mysterious object called a perspective.

A perspective is not something an organism possesses in addition to being an organism.

It is a way the organism is organised in relation to its world.

The same is true of the self.

The self is not a little entity hidden somewhere inside the organism, watching its experiences go by.

It is the continuity of the organism's participation in its world.

And perhaps experience should be approached in the same spirit.

We should not assume that there must be an extra phenomenal thing before there can be experience.

The existence of experience is not in doubt.

What remains difficult is understanding how nature comes to contain organised beings for whom there is a world.

That is a profound question.

But it is different from asking how a non-conscious universe somehow manufactures a second, phenomenal universe inside the heads of conscious beings.

The latter picture may have created some of the mystery it then asked us to explain.

The former begins with something we already know to be real:

living beings have worlds.

Not worlds separate from the universe.

Worlds within it.

Worlds structured by their capacities, histories, needs and possibilities.

And human beings add something extraordinary to this natural history.

We can wonder about our own perspective.

We can ask what it is like to be another creature.

We can describe our experiences.

We can invent concepts such as consciousness and qualia.

We can even become puzzled by the very fact that there is a world for us.

Perhaps that puzzlement is not evidence that consciousness is alien to nature.

Perhaps it is one of nature's achievements.

A piece of nature has become capable of asking what it is to be a piece of nature.

The world does not need a witness.

It never did.

But once living systems exist, there can be a world for them.

Once perspectives exist, there can be worlds encountered in different ways.

Once social and semiotic systems exist, those worlds can be shared, interpreted and transformed.

And once beings capable of reflection exist, the universe can contain something that asks what any of this means.

The world does not need a witness.

But once living systems exist, there can be a world for them.

The Emergence of Perspective: IX. Many Perspectives, One World

If a perspective belongs to an organism's particular way of being organised, then no two organisms need to have exactly the same perspective.

A bee does not inhabit the world as a human does.

An octopus does not inhabit it as a bee does.

A tree does not inhabit it as an octopus does.

Yet they do not therefore inhabit different universes.

There is one world, encountered through different forms of life.

This distinction matters because it is easy to move from the reality of perspective to a kind of solipsism.

If everything is experienced from somewhere, perhaps there is no world apart from the experience of each organism.

But that reverses the relation.

The world does not depend on any particular perspective for its existence. Perspectives arise because organisms have particular relations to a world that already exists.

A bee's world is shaped by what a bee can sense and do. An octopus's world is shaped by an entirely different organisation. A tree's relation to its environment is different again.

These differences are real.

But they are differences in relation, not separate worlds enclosed behind private walls.

Indeed, organisms constantly demonstrate this.

A flower can be part of the world of a bee and the world of a human at the same time, though it has different significance within each. A predator can be food for one organism and danger for another. A fallen tree can be shelter for one species, a source of nutrients for another and an obstacle to a third.

The world does not have to choose between these perspectives.

It can sustain them all.

This is one reason perspective should not be understood as a picture inside an organism.

A picture would need to be compared with the world it represents.

But a perspective is a way of participating in the world.

The bee does not need an internal representation of the flower in order to pollinate it. The octopus does not need a detached model of the seabed before moving across it. The human does not need to step outside the world in order to describe it.

Perspective is situated activity.

And once organisms interact, perspectives can begin to affect one another.

The bee changes the flower.

The flower changes the bee.

Predator and prey alter one another's possibilities.

Organisms compete, cooperate, reproduce, communicate and transform their environments.

A world inhabited by many organisms is therefore not simply a collection of separate perspectives.

It is a relational ecology of perspectives.

This becomes even more significant when organisms become social.

One organism can respond to another's behaviour. Behaviour can become coordinated. Signals can be exchanged. Expectations can develop. Shared practices can emerge.

Eventually, with language, organisms can explicitly construe one another's perspectives.

I can ask what you see.

You can tell me what I have overlooked.

We can disagree about what something means.

We can imagine how the world looks from someone else's position.

Perspective can therefore become an object of reflection without ceasing to be situated.

This may be one of the great achievements of human language: not escaping perspective, but making perspective shareable and negotiable.

We never acquire a view from nowhere.

Instead, we can place different views into relation.

Science is a particularly powerful example.

Scientific inquiry does not eliminate the situated observer by magic. It develops practices for comparing observations, controlling conditions, reproducing results and coordinating descriptions across different observers.

The aim is not to create a perspective belonging to nobody.

It is to construct forms of knowledge in which perspectives can be brought into increasingly reliable relation with one another.

Objectivity, in this sense, need not mean the absence of perspective.

It can mean the disciplined coordination of perspectives.

This gives us a useful picture of the journey we have been following.

First there was a world in which differences simply occurred.

Then there were organisms for which differences mattered.

Some became sensitive and oriented within their environments.

Their worlds acquired valence.

More complex organisms developed increasingly integrated forms of experience and selfhood.

Social organisms began to coordinate their activities.

And eventually, with semiotic systems, perspectives could be shared, contested and transformed.

The result is not one perspective replacing all the others.

It is a world containing many ways of being related to it.

The universe has not become less real because it contains perspectives.

It has become richer.

There can be a world for a bee, a world for an octopus, a world for a tree and a world for a human without there being four worlds.

There can be many perspectives because there is something there to have perspectives on.

And this brings us back to where we began.

The universe did not need a witness.

But once nature produced living systems, something remarkable became possible.

There could be beings for whom the world mattered.

And once there were such beings, there could be beings for whom the world could be experienced, shared, interpreted and meant.

The final question is therefore not why the universe needed consciousness.

It is why nature became capable of producing creatures for whom there could be a world at all.

Perhaps the answer is not hidden in some additional ingredient called consciousness.

Perhaps it lies in the history of life itself.

The Emergence of Perspective: VIII. When Meaning Enters the World

Something can matter without meaning anything.

A nutrient matters to a bacterium. Light matters to a plant. A predator matters to its prey.

But none of this, by itself, requires meaning in the human sense.

Meaning enters the world when significance becomes organised within a system of signs.

This is a very different development.

A chemical gradient can guide an organism towards nourishment without being a symbol for nourishment. A bird's alarm call can affect the behaviour of other birds without necessarily functioning like a human sentence.

There is a continuum here, but it is important not to erase the distinction.

Biological systems are already responsive to significance.

Social organisms add something new: their activities can become coordinated through signals produced and interpreted within a shared way of life.

A signal can therefore acquire a significance that depends not simply on what it does physically, but on how it functions within a social system.

This is where the distinction between mattering and meaning becomes useful.

Mattering is rooted in the organisation of a living system.

Meaning is rooted in a system of distinctions that can be used to make significance available within a social world.

The difference is not that meaning suddenly becomes detached from biology.

It grows out of it.

Social life provides new possibilities for significance because organisms can respond not only to their physical environment but to one another.

A movement can become a signal.

A signal can become conventionalised.

A distinction can become shared.

And once a community has a repertoire of such distinctions, members can use them to coordinate action, attend to things that are not immediately present, and construct possibilities that no individual organism could establish alone.

This is where Halliday's account of language becomes especially useful.

Language is not simply a collection of labels attached to an already completed world. It is a meaning potential: a socially available resource for making distinctions and enacting relationships.

Meaning is therefore not merely something that happens inside individual minds.

It is realised through social activity.

A child learning a language is not simply learning names for things. The child is entering a system through which experience can be organised, relationships enacted and possibilities construed.

The world that already mattered biologically can now become a world that is meaningful socially.

This suggests a useful way of understanding the broad movement from the physical to the biological, the social and the semiotic.

At the physical level, differences occur.

At the biological level, differences can matter.

At the social level, differences can become significant for coordinated activity between organisms.

At the semiotic level, significance can be organised as meaning.

These are not sealed compartments, nor necessarily stages through which every organism must pass.

They are increasingly elaborate forms of organisation.

And meaning does not replace mattering.

A word for water still matters because water matters.

A warning still matters because something may be dangerous.

A story matters because the lives and relationships it construes matter to the people who participate in its culture.

Meaning extends the reach of significance.

It allows organisms to act upon possibilities that need not be immediately present.

A sign can point beyond itself.

A remembered event can be reconstructed.

A future can be imagined.

An absent person can be spoken of.

A possible world can be described.

With language, the world becomes extraordinarily more than a field of biological affordances.

It becomes a field of things that can be meant.

And this changes the nature of perspective.

A biological perspective is shaped by what matters to a particular organism.

A social perspective is shaped also by the perspectives of others.

A semiotic perspective can include perspectives upon perspectives: what you think I mean, what I think you expect, what we take this sign to mean.

The world can now be shared without becoming identical for everyone.

This may be one of the great achievements of language.

It does not abolish perspective.

It makes perspectives communicable.

We began this series with a universe in which nothing needed to matter to anything.

We have arrived at a world in which things can matter, be sensed, be valued, be experienced, be remembered—and eventually be meant.

But there is still a problem.

If every organism has its own way of being oriented within the world, how can there be one world shared by many perspectives?

How can the bee, the octopus, the tree and the human inhabit the same world without experiencing it in the same way?

Perhaps the answer lies not in choosing between one world and many.

Perhaps there can be many perspectives on one world.

The Emergence of Perspective: VII. The Self That Has a World

If there is a world for an organism, there is also an organism for which that world matters.

But what is this self?

The obvious answer is to imagine something inside the organism that owns its experiences.

I see the tree.

I feel the pain.

I remember yesterday.

There seems to be an I behind these experiences, the one to whom they belong.

But we have already encountered the difficulty with this picture.

If the organism contains an inner subject who observes its experiences, then we have simply moved the problem one step inward. What observes the inner subject?

The alternative is to look at the organism itself.

A living organism has continuity.

It changes constantly, but it does not change arbitrarily. Its present activity arises from its previous condition and contributes to its future condition. Its metabolism, bodily regulation, memories, learned responses and ongoing interactions form an extended history.

The organism is therefore not a fixed thing.

It is a continuing process.

This continuity matters because the organism's world is organised around that continuing process.

Food matters because this organism must continue to metabolise.

Danger matters because this organism can be damaged.

A remembered place matters because this organism has been there before.

A future possibility matters because this organism can act towards it.

The self that has a world is therefore not an additional entity standing behind the organism.

It is the organism's continuity as a centre of activity and significance.

This helps explain why selfhood can be both remarkably stable and constantly changing.

The body changes.

Memories change.

Beliefs change.

Skills are acquired and lost.

Cells are replaced.

Yet there is enough continuity for the organism to remain recognisably the same participant in its world.

Identity here is not the persistence of an unchanging substance.

It is the persistence of an organisation through change.

This also gives us a more useful way of thinking about the first-person character of experience.

Experience is not private because it occurs inside a private container.

It is particular because it belongs to a particular history of organisation.

No two organisms occupy exactly the same relation to the world because no two have exactly the same capacities, histories, needs and possibilities.

Perspective is therefore neither an objective view from nowhere nor a mysterious inner picture.

It is the world as encountered from within a particular form of life.

And as organisms become more complex, the continuity of the self can become more elaborate.

An organism can retain traces of previous encounters. It can anticipate what may happen next. It can compare present conditions with previous ones. It can alter its behaviour according to what it has learned.

The present is no longer isolated.

Past, present and possible future become integrated into one ongoing process.

At this point, the organism's world becomes more than a field of immediate biological possibilities.

It becomes a world that can be remembered, anticipated and navigated.

That does not yet give us symbolic meaning.

A remembered danger need not be represented by a word. An anticipated event need not be expressed as a proposition.

But something important has happened.

The organism can now carry its world with it through time.

And perhaps this is the deeper sense in which a self has a world.

It is not that a self first exists and then acquires a world.

The self and its world emerge together through the continuing organisation of the organism's relation to its environment.

A self is a centre because things matter to it.

A world is a world because it matters to a self.

Neither needs to be added as a separate thing.

There is, however, another transformation still to come.

So far, the significance of the organism's world has been biological.

But organisms do not remain alone.

They encounter other organisms. They coordinate their activities. They respond to one another. They begin to use differences in their environments as signals.

Eventually, some of those signals can become signs within shared systems.

The world can begin not merely to matter.

It can begin to mean.

That is where meaning enters the world.

The Emergence of Perspective: VI. From Orientation to Experience

We have now followed life from sensitivity to orientation, and from orientation to valence.

An organism does not merely encounter differences. Some differences matter to it. Some possibilities sustain it, others threaten it. Its activity is organised accordingly.

But is that enough for experience?

Here we reach the point at which explanations of consciousness often seem to divide.

One approach says that nothing in physical description seems to contain the fact that an experience occurs. We can describe the nervous system, its activity and its interactions with the environment, yet still ask:

Why is there something it is like to be this organism?

The familiar answer is to introduce phenomenal character, or qualia.

But that move leaves us with the very problem we have been examining. If experience requires an additional phenomenal ingredient, we have not explained how it belongs to the natural world. We have simply named the thing whose existence was in question.

Perhaps we should approach the transition differently.

The organism we have been describing is already more than a collection of physical events. It is an organised process with a history, a boundary, a metabolism, a repertoire of sensitivities and a continuing relation to its environment.

Its surroundings matter to it because of what it is.

Its activity is oriented because of what it needs.

Its world has valence because of the possibilities available to it.

As organisation becomes more complex, these relations can become increasingly integrated. Sensory systems interact with memory, prediction, bodily regulation, action and one another. The organism does not merely respond to isolated stimuli. It maintains an ongoing relation with a changing environment.

At some point in this history, there may be something it is like to be such a system.

But notice what has happened to the question.

We are no longer asking how a physical process produces a second thing called experience.

We are asking how a particular kind of organised physical process comes to have a first-person mode of existence.

That is a different question.

It may still be a very difficult one.

Indeed, we should resist the temptation to pretend otherwise.

We have not demonstrated that every sufficiently integrated organism is conscious. We have not established a precise threshold at which experience begins. Nor have we shown that biological organisation alone is sufficient for consciousness.

But we may have removed one unnecessary obstacle.

Experience need not be conceived as an additional object inhabiting the organism.

The organism itself is the experiencing system.

There is no need to imagine an inner spectator receiving the organism's sensory reports. The system's sensing, regulating, remembering, anticipating and acting are already parts of one continuously organised process.

The perspective belongs to the organisation.

This also changes the significance of the phrase what it is like.

It need not refer to a mysterious property added to an experience. It can describe the particular way an organism's world is available to that organism, given its organisation and history.

A bat's world is not a human world with an extra private glow attached to it.

It is a world encountered through the capacities and constraints of a bat.

A human's experience of the world is similarly shaped by the particular organisation of a human organism.

The differences between perspectives are therefore real without requiring separate phenomenal substances.

This brings us back to a distinction from our earlier discussion.

Mattering comes before meaning.

And perhaps something similar is true of experience.

Biological significance does not automatically become consciousness. But consciousness, if it has a natural history, cannot have appeared in a world completely devoid of the relations from which it could develop.

Before there could be experience, there had to be organisms for which things mattered.

Before there could be a conscious perspective, there had to be systems capable of being oriented within an environment.

The mystery, then, may not be how consciousness suddenly enters an otherwise finished physical universe.

It may be how nature gradually produces forms of organisation for which a world can become present as their world.

We have not answered that question.

But we have changed where the question begins.

And that may be the most important step so far.

The next question follows naturally.

If an organism can have a world without requiring an inner witness, what kind of self is it that has that world?

Perhaps the self is not something the organism possesses.

Perhaps it is the continuity through which its activity becomes its own.

The Emergence of Perspective: V. The World Acquires Valence

An organism can be oriented by its environment.

But orientation can become more than simple discrimination.

Some possibilities are favourable. Others are harmful. Some lead towards nourishment, safety or reproduction. Others lead towards damage, deprivation or death.

The world begins to acquire valence.

The term can sound psychological, but its roots are biological.

Sugar can be attractive to an organism because it can be metabolised. A toxin can be avoided because it threatens the organism's organisation. Warmth can be beneficial in one context and dangerous in another.

Nothing in the sugar, toxin or warmth possesses a universal label saying good or bad.

Valence arises from the relation between environmental possibilities and the needs of a living system.

This is why the same thing can have different valence for different organisms—or even for the same organism at different times.

Water can be life-sustaining to a dehydrated animal and irrelevant to one that has just drunk. A temperature that is comfortable in one circumstance can become dangerous in another.

Valence is therefore not simply a property of the world.

Nor is it merely a private feeling added by the organism.

It belongs to the relation between organism and environment.

This takes us a step further than sensing.

Sensing allows an organism to distinguish differences.

Valence differentiates those differences according to their significance for the organism.

The environment is no longer simply there. It is structured by possibilities:

something to approach;

something to avoid;

something to consume;

something to shelter from;

something to investigate;

something that can safely be ignored.

A world begins to have meaning for action, even though it does not yet have symbolic meaning.

This distinction matters.

We use meaning in several different senses. A chemical signal can mean something to an organism in the sense that it indicates a condition to which the organism should respond. A human word means something within a shared semiotic system.

These are not the same phenomenon.

The first belongs to biological significance. The second belongs to meaning proper.

Perhaps it is better, for the moment, to say that the organism's world has acquired significance.

Something matters, and it matters in a particular way.

This gives us a possible foundation for understanding perspective.

A perspective is not simply a location from which the world is viewed. It is a way in which the world is differentiated according to the possibilities it presents to a particular form of life.

From the outside, we can describe an organism's environment in physical terms.

From the standpoint of the organism's organisation, that same environment is structured by what can sustain, damage, attract, repel, enable or constrain its activity.

Nothing mysterious has been added.

Yet something genuinely new has emerged.

Nature now contains systems for which the difference between one condition and another is not merely a difference in physical state.

It is a difference in what can happen to them.

And this brings us close to a question we have so far avoided.

When does such a biologically significant world become an experienced world?

We should be careful here.

It would be easy to say that valence is experience, and thereby declare the problem solved by changing the vocabulary.

But that would simply recreate the mistake we examined in The Trouble with Qualia.

The existence of biological significance does not by itself establish consciousness.

What it does establish is something more modest—and perhaps more useful.

Before there can be a conscious perspective, there may have to be a biological system for which the world already has a perspective-shaped structure: some things matter, some do not; some possibilities invite action, others constrain it.

The organism has not yet necessarily become a witness to its world.

But its world has begun to be organised around it.

The next question is whether, and how, this orientation can become experience.

That is where the emergence of perspective becomes inseparable from the problem of consciousness.

The Emergence of Perspective: IV. Sensing Is Not Yet Seeing

To sense something is not necessarily to see it.

Indeed, sensing did not begin with eyes.

A bacterium can detect a chemical gradient. A plant can respond to the direction of light. A root can alter its growth in response to moisture. An animal can detect temperature, pressure or vibration.

None of this requires a picture of the world.

What sensing introduces is something more basic.

The organism becomes selectively responsive to differences in its environment.

This is an important development.

In the previous post, the organism became a centre: a living system organised around its own continuation. Now that organisation can become oriented.

A difference in the environment can alter what the organism does.

The chemical gradient is not simply present. It can guide movement. Light is not merely a physical event. It can alter growth. A vibration is not merely a change in pressure. It can trigger an appropriate response.

The organism is beginning to distinguish its surroundings through its own activity.

This is why sensing is not best understood as passive reception.

A sensor does not simply collect pieces of reality. It is part of an organised system whose structure determines which differences can be detected and what consequences those differences can have.

The same environment can therefore be sensed differently by different organisms.

A bat and a human do not simply receive different quantities of information about one identical world. Their different forms of organisation make different features of the environment available to them as possibilities for action.

A flower does not need to perceive ultraviolet patterns in the way a human perceives a coloured surface. A bee's sensory capacities are organised around a different way of navigating its environment.

There is no requirement that one of these perspectives be the complete one.

Each is shaped by a form of life.

This gives us another distinction.

An organism can be affected by its environment.

It can become sensitive to differences within it.

It can become oriented by those differences.

These are not yet synonymous with seeing, and none by itself establishes consciousness.

But something has changed.

The organism is no longer merely maintaining itself amid whatever happens to occur around it. Its activities are increasingly structured by distinctions within its environment.

Its world is acquiring contours.

Some directions lead towards what sustains it. Others lead away from it. Some changes are worth responding to; others can be ignored.

Sensing therefore begins to transform the environment from a collection of events into a field of possibilities for action.

This may be the deeper significance of perception.

The organism does not first construct an internal copy of the world and then act upon it. Its sensory capacities participate directly in its engagement with the world.

To sense is, in the most basic sense, to be able to be oriented by what matters.

Seeing is a highly elaborate form of this capacity.

It brings spatial organisation, integration, memory, prediction and action into increasingly complex relationships. But the eye should not obscure the much older biological achievement from which seeing eventually develops.

Before there was seeing, there was sensitivity.

Before there was a picture of the world, there was orientation within it.

And once an organism can be oriented by what matters, another possibility appears.

The differences it encounters need not merely guide its activity.

They can acquire different values for it.

The world can begin to feel, in the broadest biological sense, favourable or hostile.

That is where valence enters the story.

The Emergence of Perspective: III. The Organism Becomes a Centre

A living organism is affected by its environment.

But it is not affected in just any way.

Its organisation determines which differences matter, and those differences in turn affect what the organism does. Nutrients are taken up. Damage is repaired. Conditions are regulated. Threats are avoided. Opportunities are exploited.

The organism is beginning to look less like a thing located somewhere and more like a centre of activity.

But what does that mean?

It does not mean that there is a little command centre inside the organism. There is no inner manager receiving reports from the senses and issuing instructions to the body.

The centre is the organisation itself.

An organism continually acts to preserve a particular organisation through changing circumstances. Its activities converge upon its continued existence, while its surroundings continually impinge upon those activities.

This gives the organism a peculiar kind of unity.

A rock can be pushed, heated or broken, but there is no ongoing organisation of the rock around the preservation of its own existence. A living system, by contrast, continually works to remain the kind of system it is.

Its parts therefore acquire their significance through their contribution to the whole.

A membrane separates an inside from an outside. Metabolism transforms materials. Regulation compensates for changes. Repair restores damaged structures. Reproduction extends the organisation beyond the individual.

None of these processes needs an inner observer.

Yet together they establish something remarkably close to what we ordinarily mean by a point of view: things happen to this organism, and some of those things make a difference to what this organism can continue to do.

The phrase to this organism is doing important work.

It does not designate a hidden subject behind the organism. It designates the organism's particular organisation and history.

A temperature change matters because of what this organism can tolerate. A chemical gradient matters because of what this organism can metabolise. A movement matters because of what this organism can pursue or avoid.

The centre is therefore not a point in space.

It is a centre of significance.

This also helps explain why the emergence of a centre is not the same thing as the emergence of consciousness.

A plant can coordinate an extraordinary range of activities without possessing a nervous system. A single-celled organism can alter its behaviour according to changing conditions. Even very simple organisms can maintain themselves through continuous exchanges with their surroundings.

So we should resist the temptation to draw a line too early.

The question is not:

When did nature put a mind inside an organism?

It is:

When did organised life become capable of being oriented within a world?

That question shifts our attention from an inner observer to a relation.

An organism has a centre because its activities are organised around the continuation of its own form of life. Its environment acquires significance in relation to that organisation.

And once there is a centre of this kind, something else becomes possible.

The organism need not merely be affected by its surroundings.

It can begin to distinguish them.

It can become sensitive to differences that matter, respond selectively to them, and alter its activity accordingly.

The organism begins to find its way through its world.

The next step is therefore not yet seeing.

It is sensing.