An organism can act without understanding what it is doing.
A bacterium can move toward a nutrient.
A plant can grow toward light.
An animal can alter its behaviour according to what it encounters.
In each case, possibilities matter.
But at some point in the history of life, possibilities began to acquire another property.
They could become meaningful.
This is not the same as mattering.
Mattering is older.
A possibility matters to an organism when its realisation has consequences for the organism's organisation and continuation.
Meaning emerges when a possibility can be related to something beyond its immediate physical consequence.
The distinction is easiest to see in communication.
A bird's alarm call can alter the behaviour of another bird.
At first glance, this looks like any other causal interaction.
But the call can come to function as something for another organism.
It does not merely cause a response.
It can stand in a relation to a situation.
A sound can become significant because it indicates something about what is happening elsewhere.
This is the beginning of a sign.
And with signs, possibilities can be detached from their immediate circumstances.
A danger need not be present at the precise moment that another organism responds to an indication of danger.
A track can indicate an animal that is no longer there.
A smell can indicate food that has not yet been reached.
A sound can indicate something outside the immediate sensory field.
The world of the organism has acquired a new dimension:
what is present can point toward what is absent.
That is a profound extension of agency.
The organism is no longer limited to responding to what is immediately happening.
It can respond to what something else makes possible, probable or relevant.
Possibilities can now be mediated.
This is where meaning begins to separate itself from mere mattering.
A nutrient matters because of what it does for the organism.
A signal can mean something because of what it stands for within a relation.
The two can coincide, but they are not the same.
Meaning introduces a structure of aboutness.
A sign is not merely an event with consequences.
It participates in a relation in which one thing can function as an indication of another.
This does not require language.
Animal communication, navigation, recognition and signalling can all involve forms of signification far older than human speech.
But language transforms the possibilities dramatically.
A word can evoke something absent.
It can describe something hypothetical.
It can distinguish possibilities that have never been encountered.
It can combine with other words to construct possibilities that do not yet exist.
The organism is no longer merely responding to a field of possible actions.
It can operate upon possibilities symbolically.
This is a major expansion of agency.
An animal can pursue a possible future.
A human can describe it.
A human can imagine several possible futures, compare them, discuss them with others and coordinate action around one that does not yet exist.
Possibility has become an object of collective activity.
And this is where meaning becomes deeply social.
A word means something because it participates in a system shared across individuals.
A map can guide someone through a landscape they have never seen.
A promise can alter behaviour by referring to a future event.
A scientific model can organise action around entities or processes that cannot be directly encountered.
Symbols therefore extend agency beyond the immediately available world.
They allow organisms to act upon possible worlds.
But the older layers remain.
Symbolic meaning does not replace mattering.
It builds upon it.
A warning matters because something is at stake.
A promise matters because a future action matters.
A map matters because movement through a landscape matters.
Meaning becomes powerful precisely because it can organise mattering at a distance.
This suggests that the emergence of meaning is not a sudden departure from biology.
It is an elaboration of an older trajectory:
differences matter → organisms respond → organisms learn → organisms coordinate → signs mediate possibilities → symbols organise possible futures.
Agency has travelled a long way.
At the beginning, an organism altered its immediate circumstances.
Later, it altered its future possibilities.
Then organisms began altering one another's possibilities.
Now, through signs and symbols, they can alter possibilities that are not immediately present at all.
Meaning has therefore expanded the reach of agency.
A sign can carry the consequence of one situation into another.
A symbol can carry a possibility from one mind to another.
A story can carry a possibility across generations.
A theory can carry a possibility across centuries.
The agency of a living system can therefore become detached from the immediate moment without becoming detached from life.
Perhaps that is what makes meaning such a powerful evolutionary development.
It allows the organism to act not only upon what is, but upon what might be.
And once possibilities themselves can become meaningful, agency acquires a new horizon:
the ability to act on a future that exists, for the organism, before it exists in the world.
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