We began this journey with a deceptively simple question.
How does evolution preserve what has worked?
Dawkins offered an elegant answer.
The gene is a replicator.
It persists because it makes copies of itself.
Those copies vary.
Some variants persist more successfully than others.
Over immense periods of time, differential persistence produces the extraordinary diversity of life.
There is something genuinely powerful in this picture.
But our journey has taken us somewhere rather different.
We have watched the replicator lose its apparent agency.
We have distinguished Actor from Medium.
We have seen how grammatical metaphor can turn a process into a thing, and how a thing can then appear to possess the powers of the process.
We have watched the gene move from protagonist to participant.
We have seen the organism cease to be a passive vehicle and become a participant in its own evolutionary history.
We have seen environments become historical rather than merely given.
We have seen inheritance become more than transmission.
And we have arrived at a striking possibility:
Perhaps evolution does not fundamentally require a universal replicator at all.
Not because replication is unimportant.
It is enormously important.
But because replication may be one mechanism within a larger process whose deeper structure is the transformation of inherited possibility.
The question now is whether that claim can stand without becoming merely another beautiful metaphor.
The temptation of the final theory
There is always a danger at the end of an intellectual journey.
We discover a pattern.
The pattern illuminates many things.
And then we are tempted to promote it into a theory of everything.
We should resist that temptation.
"The transformation of possibility" is not a replacement for evolutionary biology.
It does not compete with population genetics.
It does not eliminate genes.
It does not explain mutation, recombination, drift or selection by itself.
It is not a new evolutionary mechanism.
It is a way of construing the relationship among mechanisms.
That distinction is crucial.
Our ambition is conceptual, not imperial.
We are not trying to make biology speak our philosophical language.
We are asking whether a different way of organising the conceptual vocabulary can make some features of evolutionary biology more intelligible.
If it can, then we have learned something.
If it cannot, the metaphor should be discarded.
That is the discipline we have tried to maintain throughout.
What, then, actually evolves?
This is perhaps the question we should have asked at the beginning.
Not:
What is the unit of evolution?
But:
What changes through evolutionary history?
The conventional answers come at different levels.
Allele frequencies change.
Traits change.
Populations change.
Lineages change.
Developmental systems change.
Ecological relations change.
Species change.
The answer depends partly upon the process being investigated.
There may therefore be no single privileged object called the evolutionary unit.
This is not necessarily a defect.
A forest does not need one privileged unit of description.
A language does not need one.
An economy does not.
A living organism does not.
Complex processes can contain multiple levels of organisation without requiring one of them to be metaphysically fundamental.
Perhaps evolution is like that.
The replicator was a brilliant compression
This allows us to give Dawkins his due more clearly than we could at the beginning.
The replicator concept was not foolish.
It was brilliant because it compressed a complicated process into a tractable conceptual image.
It asked us to focus upon persistence across generations.
It highlighted the importance of differential reproduction.
It made inheritance evolutionarily consequential.
It gave cultural evolution a provocative analogy.
And it challenged the idea that adaptation required foresight or design.
These were genuine intellectual achievements.
The problem arose when the compression became an ontology.
When the replicator ceased to be a useful way of describing a process and became something imagined as the thing that evolution really is about, the metaphor began to constrain the questions we could ask.
The replicator became the protagonist.
And once the protagonist had been installed, everything else risked becoming supporting cast.
From units to relations
Our alternative does not ask us to find a better protagonist.
It asks us to change the grammar of the question.
Instead of:
What thing evolves?
we ask:
What relations make evolutionary change possible?
Instead of:
What replicates?
we ask:
What forms of organisation persist sufficiently for transformation to accumulate?
Instead of:
What is selected?
we ask:
Under what conditions do differences acquire differential consequences?
Instead of:
What causes adaptation?
we ask:
How do inherited organisation, development, organismal activity and ecological conditions become coupled so that some possibilities persist and others disappear?
These questions do not abolish the original ones.
They place them within a larger conceptual field.
The gene remains
It is worth saying this one more time.
The gene remains.
Nothing we have argued requires its disappearance.
Genes are real biological structures.
Genetic inheritance is real.
Replication is real.
Mutation is real.
Differential reproduction is real.
Population-level changes in allele frequencies are real.
The point is not that genes are unimportant.
It is that their importance does not require them to be agents.
Nor does it require them to be complete specifications.
Nor does it require them to be the sole bearers of evolutionary continuity.
A gene participates in a developmental and reproductive system.
Its evolutionary consequences depend upon that participation.
This is a conceptual demotion only if we have become accustomed to treating explanatory centrality as ontological sovereignty.
Biology need not make that mistake.
Replication without the replicator
There is therefore a subtle distinction we can now make.
Replication is a process.
A replicator is a grammatical noun that packages something capable of participating in that process as a thing.
There is nothing wrong with the noun.
But the noun can conceal the process.
"The gene replicates" gives us a transitive Actor in the transitivity model.
But if we ask what actually happens biologically, we find an extraordinarily complex set of processes in which the gene participates.
The gene is not standing outside replication and deciding to perform it.
Nor is it the ultimate source of the machinery through which replication occurs.
It is part of a system.
This is why the earlier grammatical observation matters so much.
Language does not merely report our theories.
It helps us construct the objects through which theories become thinkable.
The evolutionary process is distributed
Once we stop looking for the single evolutionary protagonist, a more distributed picture appears.
Genetic processes contribute to inheritance.
Development contributes to form.
Organisms contribute through activity.
Ecological systems contribute through environmental conditions.
Other organisms contribute through interaction.
Populations contribute through differential reproduction.
Historical environments contribute through persistence.
No one component needs to control the whole.
The evolutionary process emerges from their coupling.
This does not mean "everything causes everything".
That would be useless.
It means that causal importance is structured by relations.
Different processes matter in different ways at different scales.
The task of explanation is to identify those relations, not to reduce them prematurely to a single privileged entity.
The organism does not replace the gene
We should therefore resist another temptation.
Once the gene has been displaced from the centre, we might simply install the organism there.
But the organism is not the answer either.
The organism develops through inherited organisation.
It depends upon environmental conditions.
It participates in ecological systems.
It belongs to a lineage.
Its capacities have histories.
It acts, but it does not author the conditions of its own existence from nowhere.
The organism is therefore not the master of evolution.
It is one of the places where evolutionary processes become organised and consequential.
The same applies to the environment.
And to the population.
And to the lineage.
The evolutionary world has no need of a monarch.
The ecology of evolution
This gives us a phrase we can now use literally rather than metaphorically:
the ecology of evolution.
Evolution takes place through interacting processes.
A mutation matters in relation to a developmental system.
A developmental difference matters in relation to an environment.
An environmental difference matters in relation to organismal capacities.
A behavioural difference matters in relation to other organisms.
A reproductive difference matters in relation to population structure.
Each relation can alter the conditions of the next.
Evolution is therefore not a sequence of isolated events.
It is a history of coupled transformations.
The environment is not simply where evolution happens.
Organisms help make the environments in which evolution subsequently happens.
The organism is not simply produced by evolution.
It participates in processes that alter the conditions of subsequent evolutionary change.
The distinction between product and participant therefore becomes unstable.
Becoming changes the conditions of becoming
This may be the most concise formulation we have reached.
In evolution, becoming changes the conditions of subsequent becoming.
A new trait becomes actual.
It changes behaviour.
Behaviour changes an environment.
The environment changes selection.
Selection changes population composition.
Population change alters ecological relations.
Those relations affect future development.
Future development changes what variations can become actual.
And so on.
There is no need for a final destination.
The process is recursive.
The future does not wait in the distance as a predetermined endpoint.
It emerges from conditions transformed by history.
Potential, possibility and actuality
This is where our distinction among potential, possibility and actuality becomes especially useful.
They are not interchangeable.
A potential is a capacity grounded in an organisation.
A possibility concerns what can occur under particular conditions.
An actuality is what occurs.
An organism may possess a potential.
An environment may make a particular possibility available.
The organism may actualise that possibility.
That actuality may alter the environment.
The altered environment may change which possibilities are subsequently available.
So the relation can be represented schematically:
potential → possibility → actuality → transformed conditions → new possibility
This is not a law of evolution.
It is a conceptual map of a recurrent structure.
And importantly, the arrows are not one-way metaphysical necessities.
A potential may never become actual.
A possibility may disappear.
An actuality may have no lasting evolutionary consequence.
What matters is that under the right historical conditions, actualisation can modify the field within which subsequent possibilities arise.
Evolution is not the unfolding of potential
We must also guard against another philosophical trap.
If we speak of potential, it is tempting to imagine that evolution is the gradual unfolding of possibilities already hidden within life.
That would bring teleology in through the back door.
Evolution does not reveal a pre-existing menu of future forms.
The future possibilities themselves can change.
A structure can create possibilities that did not previously exist as biologically actionable possibilities.
A new ecological relation can make an old capacity consequential.
A developmental innovation can make a new phenotype producible.
A change in the environment can render a previously irrelevant trait advantageous.
Possibility is therefore historical.
It is not a fixed catalogue waiting to be discovered.
Possibility is made, not merely found
This is perhaps the strongest sense in which evolution transforms possibility.
A possibility can become available because the world has changed.
But the world can change because organisms have acted within it.
So possibility is not merely something organisms encounter.
Sometimes it is something their history helps produce.
The beaver dam changes the landscape.
The altered landscape changes ecological possibilities.
The new possibilities affect descendants.
The descendants inherit not only genetic organisation but a world partly transformed by earlier activity.
No beaver needs to intend this.
No teleology is required.
The possibility emerges from participation.
A naturalistic becoming
We can now see why the phrase becoming need not imply anything mystical.
Becoming simply means that what exists at one moment can alter the conditions under which what exists later can arise.
Evolution is full of such processes.
A population changes.
Its ecological relations change.
Its developmental possibilities change.
Its descendants inherit altered conditions.
The actual therefore participates in producing the conditions of the possible.
That is becoming.
And it is entirely naturalistic.
No vital force is required.
No cosmic direction is required.
No hidden purpose is required.
Only history, organisation, relation and consequence.
Why "transformation" matters
The word transformation is also important.
We are not saying that possibility merely increases.
Evolution can open possibilities.
It can also close them.
Extinction removes possibilities.
Developmental constraints can prevent possibilities.
Ecological changes can make capacities irrelevant.
A lineage can become specialised in ways that make other forms of development less accessible.
Evolution therefore does not simply expand a possibility space.
It reconfigures it.
Some regions become accessible.
Others become inaccessible.
Some pathways become probable.
Others become improbable.
The shape of the possible changes.
That is transformation.
Evolution is not progress
This also protects us from one of the oldest errors in thinking about evolution.
If possibility is transformed, it does not follow that possibility is expanded.
If complexity increases in some lineage, it does not mean evolution as a whole is progressing.
If a lineage becomes highly specialised, it has not necessarily become "better".
Evolution has no universal destination.
A bacterium is not an unsuccessful mammal.
A worm is not a failed human.
A lineage is successful relative to the conditions in which it persists.
The transformation of possibility is therefore not a story of ascent.
It is a story of diversification, constraint, loss, innovation and persistence.
The future branches.
Some branches end.
Others continue.
None was guaranteed.
The history of constraints
Perhaps the most underappreciated part of this picture is the history of constraint.
Every evolutionary innovation creates new possibilities.
But it can also create new dependencies.
A lineage may gain a capacity and lose another.
A specialised developmental pathway may make one form easier to produce and another harder.
An ecological relationship may create mutual dependence.
A new structure may solve one problem while generating another.
Evolution therefore transforms not just what organisms can do, but the conditions under which they can continue to do it.
Possibility and constraint evolve together.
This is why our earlier essay on constraint as creativity has such relevance here.
A constraint is not merely an obstacle.
It can be part of the architecture that makes a new form possible.
The strange creativity of evolution
We should be careful with the word "creativity".
Evolution does not imagine.
It does not intend.
It does not compose.
Yet it produces novelty.
How?
Because novelty can arise from the recombination and transformation of existing organisation under changing conditions.
A new relation can produce a new function.
A new function can produce a new ecological role.
A new ecological role can change selection.
A developmental constraint can channel variation into a novel form.
No mind needs to have conceived the result beforehand.
Evolutionary creativity is therefore emergent rather than intentional.
It is creativity without a creator.
That is one of the most philosophically interesting features of biological evolution.
The metaphor of the tinkerer
This is why the familiar metaphor of evolution as a "tinkerer" has such appeal.
It captures the historical opportunism of evolution.
Existing structures are modified.
Old capacities are recruited for new functions.
Constraints are worked around.
New relations emerge from old structures.
But again, the metaphor has limits.
There is no actual tinkerer.
The useful insight is simply that evolution works with what already exists.
The past supplies materials and constraints.
The future emerges from their transformation.
Evolution does not begin with a blank page.
It writes over an already written manuscript.
And sometimes the old writing remains visible underneath.
The palimpsest of life
Perhaps the better metaphor is therefore a palimpsest.
New organisation is written over old organisation.
Old structures acquire new functions.
Historical traces remain.
Constraints persist.
Some transformations are reversible.
Others are not.
The resulting organism carries evidence of its history.
But the metaphor must again remain a metaphor.
The important structural point is that evolutionary novelty is historically conditioned.
The new does not emerge from nowhere.
It emerges from inherited organisation under altered conditions.
That is why contingency and constraint can coexist.
Contingency and constraint
Evolutionary history is contingent.
A different mutation might have occurred.
A different environment might have existed.
A different interaction might have arisen.
A different lineage might have survived.
Yet evolution is also constrained.
Not every mutation is developmentally accessible.
Not every phenotype is viable.
Not every ecological relation is possible.
Not every variation reproduces.
The history of life therefore unfolds between contingency and constraint.
This is precisely what a transformation-of-possibility framework predicts.
The possible is structured.
But the structure does not uniquely determine what becomes actual.
Actuality selects one path among many available—or creates conditions in which a previously unavailable path becomes possible.
The role of probability
We should also be careful not to confuse possibility with probability.
Something may be possible without being probable.
A mutation may be possible but extraordinarily unlikely.
A developmental form may be physically possible but biologically inaccessible.
A behaviour may be possible but maladaptive under current conditions.
Evolution operates not merely on what can happen but on what actually happens with differential consequences.
Probability therefore belongs to the bridge between possibility and actuality.
Our conceptual framework should not erase that distinction.
Indeed, it makes the distinction more visible.
The possible is the field of what can occur.
The probable concerns how likely particular possibilities are under particular conditions.
The actual is what occurs.
Evolution transforms the conditions under which all three relations are constituted.
From biological evolution to conceptual evolution
And here something rather unexpected happens.
We began with memetics because we were interested in cultural inheritance.
We discovered that symbols, practices and concepts can persist through reconstruction rather than exact copying.
We then asked whether that insight could illuminate biological evolution.
It has.
But the movement also runs in the other direction.
Biological evolution gives us a naturalistic example of something that our work on conceptual evolution had already suggested:
historical continuity does not require identity.
A concept can change and remain recognisably the same tradition.
A language can change and remain a language.
A lineage can change and remain a lineage.
A practice can change and remain a practice.
What persists is not necessarily an immutable object.
It can be a pattern of organised transformation.
This may be one of the deepest connections across our work.
Culture does not float above nature
This also changes how we should think about memes.
The lesson of our memetics series was not that culture consists of little cultural genes.
It was that cultural continuity requires mechanisms through which patterns can persist, vary and become embedded in communities.
Now we can say something similar about biological evolution.
Biological continuity does not require little agents called replicators.
It requires mechanisms through which organisation can persist, vary, interact with conditions and become historically consequential.
The analogy between genes and memes therefore survives—but at a deeper level.
Not as identity.
Not even necessarily as mechanism.
As a structural analogy concerning historical persistence and transformation.
The symbol and the organism
This may be the most surprising conclusion of all.
A symbol and an organism are obviously not the same kind of thing.
A symbol belongs to a semiotic system.
An organism belongs to a biological system.
But both can participate in historical processes in which organisation persists through repeated instantiation.
A symbol survives because participants continue to use it.
An organism persists as a lineage because biological processes continue to reproduce and transform its organisation.
Neither requires exact copying.
Neither requires a little internal agent whose purpose is persistence.
Both depend upon a larger system that makes continuity possible.
The analogy is therefore not:
gene = meme.
It is:
historical persistence can occur through participation in a system that reconstructs and transforms organisation.
That is a much more interesting proposition.
SFL and the problem of construal
Our SFL perspective has helped us throughout because it keeps reminding us that the form of a clause matters.
"The gene replicates."
"The organism adapts."
"Selection favours the trait."
"Evolution creates complexity."
Each clause is grammatically possible.
Each may be useful.
But each construes a process in a particular way.
A process becomes an Actor.
A relation becomes a noun.
A complex historical interaction becomes a subject.
The resulting grammar can make distributed processes appear to have central agents.
This does not mean the grammar is false.
It means we should ask what the grammar is doing.
Scientific language needs compression.
But compression creates affordances.
And those affordances can guide thought.
Conceptual Naturalism as methodological restraint
This is where Conceptual Naturalism has perhaps served its most important purpose.
It has not given us a new biological theory.
It has taught us to examine the conceptual tools through which biological theories become intelligible.
When we encounter:
replicator,
program,
blueprint,
fitness,
information,
competition,
strategy,
selection,
adaptation,
we can ask:
What process has been construed through this expression?
What does the metaphor reveal?
What does it conceal?
What assumptions become easier to make once the metaphor is adopted?
What alternative construals become harder to see?
This is not linguistic pedantry.
It is conceptual hygiene.
Relational ontology without dissolving entities
Our relational ontology has performed a complementary function.
It has prevented us from responding to the problems of reductionism by dissolving everything into relations.
The gene is still a gene.
The organism is still an organism.
The environment is still distinguishable from the organism.
A lineage is not merely a metaphor.
But none of these entities is adequately understood in isolation from the relations in which it participates.
The lesson is not:
there are no things, only relations.
It is:
the identity and capacities of things are partly constituted by the relations through which they persist and act.
That is a much more modest—and much more useful—claim.
What the replicator taught us
Perhaps we can now return to Dawkins one final time.
What did the replicator teach us?
It taught us to take inheritance seriously.
It taught us to ask how information can persist without intention.
It taught us to think about differential reproduction.
It taught us that evolutionary explanation need not invoke foresight.
And it opened the possibility of thinking about cultural evolution in evolutionary terms.
Those are substantial contributions.
But perhaps the deepest achievement of the replicator concept was not that it gave us the final answer.
It gave us a better question.
What mechanisms allow patterns to persist and change across generations?
That question survived the limitations of the original model.
Indeed, perhaps it became more interesting because of them.
The evolution of the question
And this brings us to something that has become a recurring theme in our work.
Ideas evolve too.
Not because they are organisms.
Not because they possess genes.
Not because they struggle for survival in some literal Darwinian arena.
But because questions generate further questions.
A concept solves one problem and reveals another.
A metaphor illuminates one relation and obscures another.
A theory succeeds and thereby makes its own limitations visible.
The conceptual landscape changes.
The old idea becomes part of the conditions from which the new idea emerges.
That is itself a form of historical inheritance.
The question Dawkins asked has become part of the intellectual environment from which we can ask a different question.
That is perhaps the most fitting tribute to the idea of memetics.
The furrow has been guiding the plough
And now we can return to the furrow.
At the beginning, we might have imagined the plough as the active agent and the furrow as merely the mark it leaves behind.
But after everything we have seen, that picture is inadequate.
The existing furrow constrains the next movement.
The terrain determines what the plough can do.
The plough changes the terrain.
The changed terrain alters the next movement.
There is no single master.
There is a history of coupled constraint and transformation.
And perhaps this is why the furrow has become such a persistent image in our work.
The furrow is not a destination.
It is not a command.
It is not a plan.
It is a historical affordance.
It makes some movements easier than others.
It does not determine the next movement.
And because the next movement alters the furrow, the affordance itself changes.
That is remarkably close to what we have been trying to say about evolution.
The becoming of possibility
We can now finally return to the phrase that has accompanied so much of our work:
the becoming of possibility.
At first it sounded almost deliberately philosophical.
Perhaps even suspiciously beautiful.
Now it has acquired a more precise meaning.
Evolutionary history changes the organisation of living systems.
That organisation constrains and enables development.
Organisms participate in environments.
Their participation alters those environments.
Those altered environments change the conditions of reproduction.
Inheritance carries some of the consequences forward.
The resulting systems encounter new conditions.
New possibilities become available.
Other possibilities disappear.
The possible is therefore historically transformed by the actual.
That is the becoming of possibility.
Not a cosmic force.
Not a hidden teleology.
Not an evolutionary purpose.
A recursive natural process.
What evolution thinks
Our title has always been slightly dangerous.
How Evolution Thinks sounds as though evolution possesses a mind.
It does not.
But perhaps the title can now be understood differently.
Evolution "thinks" only in the metaphorical sense that its history embodies a form of problem-solving without a problem-solver.
Variation encounters constraint.
Organisation encounters environment.
Behaviour encounters consequence.
Inheritance carries successful configurations forward.
New circumstances alter what counts as successful.
The system changes.
There is no mind behind it.
Yet the history contains something that looks remarkably like intelligence from the outside.
Perhaps that is precisely why the metaphor is useful.
And precisely why we must not mistake it for an ontology.
Evolution without a thinker
Evolution therefore does not think.
But it produces systems capable of thinking.
It does not imagine possibilities.
But it produces organisms that can.
It does not plan.
But it produces plans.
It does not represent the future.
But it produces beings that represent futures.
This is perhaps one of the great naturalistic surprises.
The capacity for representation, intention and agency can itself emerge from a history that contains none of these things in their fully developed form.
Agency does not need to be present at the beginning for agency to become possible later.
That is another transformation of possibility.
Evolution changes not only the possibilities available to organisms.
It can change what kinds of possibility-bearing systems exist at all.
From possibility to meaning
And here the series comes full circle.
The biological world eventually produces organisms for whom the world is not merely something encountered.
It becomes meaningful.
A signal can matter.
A sound can indicate danger.
A gesture can coordinate action.
A symbol can invoke something absent.
A word can open a conceptual possibility.
At this point, semiotic organisation enters biological history in a new way.
Life does not merely respond to conditions.
Some forms of life begin to construe them.
The world becomes a world for an organism.
And eventually, in human beings, the world becomes a world of symbols, concepts and possibilities.
Evolution has produced not merely new organisms.
It has produced new ways in which actuality can become intelligible.
Evolution produces possibility-makers
This may be the deepest conclusion available to us.
Evolution does not merely transform organisms.
It transforms the kinds of organisms capable of transforming their own possibilities.
A bacterium participates in chemical gradients.
An animal participates in ecological and behavioural relations.
A social animal participates in shared practices.
A symbolic organism participates in systems of meaning.
A human being can participate in systems that explicitly represent possibilities.
Language allows possibilities to become objects of thought.
Culture allows practices to become inherited beyond the genome.
Concepts allow the future to be imagined before it becomes actual.
Evolution therefore eventually produces beings capable of participating deliberately in the transformation of possibility.
The process that began without representation produces representational participants.
That is extraordinary.
But culture does not escape evolution
Nor does this mean that culture somehow leaves biology behind.
Human symbolic systems depend upon biological organisms.
Language depends upon bodies.
Practices depend upon participants.
Institutions depend upon recurrent activity.
Concepts depend upon semiotic systems.
Culture is not outside nature.
It is one of the astonishing forms that natural history has produced.
This was the insight hidden inside our original memetics question.
Culture evolves.
But it does not need to evolve by having memes that behave like genes.
It evolves because symbolic systems provide new mechanisms for preserving, transforming and transmitting organisation.
The evolutionary story therefore continues.
It simply acquires new forms of inheritance.
The deepest inheritance
Perhaps, then, the deepest inheritance is not a gene, a trait, a meme or even a practice.
It is the capacity for further participation.
A lineage inherits conditions under which it can continue.
A social group inherits practices through which it can coordinate.
A language community inherits a semiotic system through which it can make meanings.
A culture inherits conceptual resources through which it can ask new questions.
Each generation receives something.
But what it receives is not simply a finished object.
It receives a field of possibilities within which it can act.
And its actions alter the field for those who come after.
Inheritance becomes participation.
Participation becomes transformation.
Transformation becomes inheritance.
The circle closes.
So what is evolution?
We can now offer our answer.
Not a definition in the textbook sense.
Not a replacement for the mechanisms of evolutionary biology.
But a conceptual formulation:
Evolution is the historical transformation of inherited organisation through processes of variation, development, participation and differential persistence, whereby actualisations alter the conditions of subsequent possibility.
It is a deliberately relational definition.
No single entity is privileged.
No agency is smuggled in.
No teleology is required.
No distinction between continuity and novelty is erased.
And no mechanism has been denied.
Genes matter.
Replication matters.
Selection matters.
Development matters.
Organisms matter.
Ecology matters.
History matters.
The claim is simply that these matter through their relations.
And what becomes of the meme?
The meme can now be allowed to rest.
It was never quite the little cultural gene its metaphor sometimes encouraged us to imagine.
But neither was it a useless idea.
It marked an important moment in the evolution of a question.
How does culture preserve itself?
How does it change?
How do forms persist without remaining identical?
How can historical continuity generate novelty?
Those questions remain.
Indeed, they have become larger.
They belong not merely to memetics.
They belong to biology, culture, language, conceptual history and perhaps to any domain in which organisation can persist while changing.
The meme was one attempt to think them.
Our journey has led us somewhere else.
But perhaps that is exactly what a good concept should do.
It should not merely give us an answer.
It should change the question.
The question we leave behind
We began by asking:
What replicates?
We end by asking:
What persists, what transforms, and how does each change the possibilities available to what comes next?
That is a larger question.
It does not have a single answer.
And perhaps it should not.
Genes provide one form of persistence.
Development provides another.
Organisms provide another.
Ecological structures provide another.
Practices provide another.
Symbols provide another.
Concepts provide another.
What unites them is not a universal replicator.
It is a recurring architecture:
continuity → transformation → consequence → new continuity.
The pattern is not a machine.
It is a history.
The furrow does not tell the plough where to go
And perhaps this is the final lesson.
The furrow guides the plough.
But it does not tell the plough where to go.
The plough deepens the furrow.
But it does not know what the furrow will become.
The field constrains movement.
Movement transforms the field.
The next movement inherits the altered terrain.
There is no blueprint.
There is no final map.
There is only a history of constrained possibilities becoming actual and actualities altering the conditions of what can become possible next.
That is evolution.
Not the execution of a plan.
Not the triumph of a replicator.
Not the march towards an endpoint.
But a world in which what happens changes what can happen.
And perhaps that is enough.
Indeed, perhaps it is more than enough.
Because once actuality can transform possibility, history acquires a creative dimension without requiring a creator.
Once organisation can persist through transformation, continuity no longer means sameness.
Once participation can alter the conditions of participation, becoming becomes recursive.
And once beings emerge who can represent, imagine and deliberately transform possibilities, evolution has produced something that can begin to ask what evolution itself means.
We are such beings.
We are not outside the process we are trying to understand.
We are one of its consequences.
And when we ask what evolution is, evolution is, in a very real sense, asking through us.
That may be the strangest—and perhaps the most beautiful—thing our journey has discovered. 🍷🙂