Malthus, Turchin and Societal Collapse

Malthus, Turchin, and the Maths of Collapse  -  Is It Inevitable?

There is a recurring pattern in history that keeps reasserting itself, even when we think we’ve escaped it. Civilisations rise, grow complex, overreach, and then - often quite suddenly - come apart. Moses names this pattern with disarming honesty. After warning Israel of exile and collapse, he offers an extraordinary reopening of the future: “When all these things come upon you… and you return to the Lord your God… then the Lord your God will restore your fortunes” (Deut. 30:1–3). Conditional hope could hardly be stated more clearly. And then, almost in the same breath, he adds: “I know that after my death you will surely act corruptly… and evil will befall you in the latter days.” Hope is real; confidence in human behaviour is not. At this point, history starts to resemble The Princess Bride’s Fire Swamp - sudden bursts of flame, hidden dangers, and no obvious safe route through. When Buttercup despairs, “We’ll never survive,” Westley (the dread pirate Roberts!) replies with perfect understatement: “Nonsense. You’re only saying that because no one ever has.” The joke lands because the record is merciless. No civilisation has yet made it through unscathed. That absence is not evidence against the pattern; it is the data set. What remains open is not whether societies collapse, but whether foresight, repentance, and reform can alter the trajectory enough to delay, soften, or redirect what otherwise keeps happening. It is precisely this tension - between conditional hope and overwhelming historical regularity - that modern mathematical models of growth and collapse try to capture.Two thinkers help frame the problem clearly: Thomas Malthus and Peter Turchin. They approach the same terrain from different angles, and together they give us a powerful - if incomplete - map of growth and collapse.

Malthus: constraints before comforts

Malthus was doing something unfashionable and necessary: he treated population and resources as constrained systems. His core claim was simple. Population tends to grow faster than food supply unless checked. Not because people are wicked, but because biology pushes reproduction and land productivity has limits.

Malthus was wrong about how fixed those limits were. He did not anticipate fertilisers, mechanisation, global trade, or the productivity explosions that followed. But he was right about the deeper point: constraints matter. Growth cannot be assumed; it must be earned.

Turchin: when maths meets history

Turchin takes this intuition and formalises it. In books like Historical Dynamics, Ages of Discord, and End Times, he models societies as coupled systems: population, resources, elites, and the state, all linked by feedback loops and time lags.

This YouTube discussion does a good job explaining the mathematics without mystifying it.

Start with simple growth. Add resource limits. Add extraction by the state. Add elite competition. Introduce delays. What you get - almost regardless of starting conditions - are oscillations: long periods of stability followed by sharp breakdowns. Things change slowly… until they don’t.

Turchin’s models capture something undeniably real. Overshoot happens. Lag matters. Elite overproduction fuels instability. And collapse, when it comes, is often abrupt.

But here is the critical question I keep coming back to:

If we can see the cliff coming, are we really obliged to drive off it?

Where Marx goes wrong

This is where Karl Marx enters the story - not as a useful corrective, but as a cautionary tale.

Marx did not merely critique capitalism; he tried to override economics altogether. Scarcity, incentives, prices, and subjective preference were moralised away. Value was treated as intrinsic. Production was assumed to persist once profit, prices, and ownership were abolished.

History’s verdict has been grimly consistent. Where Marxist ideas were implemented at scale, reality reasserted itself in the same way: shortages, black markets, coercion - and often mass starvation. Not because planners were uniquely evil, but because the system denied the informational and motivational machinery that production requires.

In other words, Marx didn’t discover economic laws. He tried to cancel them with moral outrage and historical determinism. Economics won.

How capitalism delayed Malthus (without disproving him)

Capitalism, by contrast, didn’t abolish scarcity; it used it. Prices became signals. Profit became a lure for innovation. Scarcity pointed effort to where it mattered most.

This is why capitalism repeatedly took production beyond what Malthus expected. Food output rose faster than population for long stretches. Living standards climbed. Famines receded where markets functioned and institutions held.

But capitalism is not magic. It extends the ceiling; it doesn’t remove it. It can overshoot, externalise costs, hollow out families, and concentrate power. Left morally untended, it creates its own fragilities - demographic collapse among them.

The missing dimension in the maths

This is where I part company - gently - with a purely mathematical reading of Turchin. The equations map aggregate behaviour well, but they flatten human diversity. They don’t differentiate how different human strategies respond under pressure. They don’t fully account for culture, religion, or moral renewal. And they tend to treat foresight as negligible.

History suggests otherwise - and England around 1789 is the clearest counterexample I know.

If you had applied Peter Turchin’s predictors of societal collapse to late-18th-century Britain, the diagnosis would have looked ominous. Rapid urbanisation had torn people from village life and traditional moral constraints. Inequality was stark: a small landed and commercial elite sat above an expanding, precarious urban poor. Elite competition was intense, with growing numbers of educated men seeking status, office, and influence. Food prices were volatile, wages lagged, and the political system was widely perceived as corrupt and unrepresentative. Add to this the shock of industrial change, and Britain looked structurally primed for the same kind of revolutionary explosion that had just erupted across the Channel.

And in France, the explosion came exactly as the models would predict.

The French Revolution followed the classic collapse script: fiscal crisis after decades of debt, elite infighting, popular resentment, ideological radicalisation, and finally violence. Scarcity met moral outrage. Institutions lost legitimacy. Once the centre failed, events cascaded rapidly - from reformist hopes to terror, mass executions, and civil war. If anything, France became the textbook example of what ought to happen when Turchin’s variables align.

From a purely structural point of view, England should have followed.

Yet it didn’t.

That divergence is the part the mathematics alone cannot explain.

What changed in England was not that the pressures disappeared, but that the parameters shifted mid-flight - and crucially, many of those shifts seem to have been catalysed by watching France burn.

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The shock of France and the English moral awakening

Contemporaries were under no illusions about how close Britain might be to the same fate. Riots, machine-breaking, and unrest were already present. What the French Revolution supplied was not inspiration, but warning.

This is where the Evangelical Revival matters - not as a pious footnote, but as a civilisational intervention. Figures like John Wesley and George Whitefield had, for decades before 1789, been preaching to precisely the populations most vulnerable to revolutionary mobilisation: the urban poor, miners, factory workers, and the newly uprooted.

Wesley was explicit about the social stakes. He repeatedly warned that moral decay, cruelty to the poor, and elite indifference would invite catastrophe. In one oft-quoted line, he wrote that he feared England would face “the same desolations as France” if it did not repent of pride, luxury, and injustice. The revival framed social breakdown not primarily as a class struggle, but as a moral failure shared across society - a subtle but crucial reframing.

Here's a fuller quote with Wesley’s warning, his words seem as relevant today as they were in his time:

"I fear, wherever riches have increased, the essence of religion has decreased in the same proportion. Therefore do I not see how it is possible, in the nature of things, for any revival of true religion to continue long. For religion must necessarily produce both industry and frugality, and these cannot but produce riches. But as riches increase, so will pride, anger, and love of the world in all its branches.

Is there no way to prevent this? There is one way, and there is no other under heaven. If those who ‘gain all they can’ and ‘save all they can’ will likewise ‘give all they can,’ then, the more they gain, the more they will grow in grace, and the more treasure they will lay up in heaven. But this, it seems, is a draught which no man can drink. I fear the generality of Methodists have already ‘turned back from the holy commandment.’

What remedy is there for this? You know none, nor I; but God has one. He is able to roll away the reproach of His people; and He will do this when they ‘sanctify a fast, and call a solemn assembly,’ and turn to Him with fasting, and weeping, and mourning, and prayer.

What, then, can be done in order to a revival of religion? I am, I confess, in pain for you, and for the nation. I see the cloud gathering more and more. Many of you are increasing more and more in goods; and, consequently (unless you ‘give all you can,’) in pride, in the desire of the flesh, the desire of the eyes, and the pride of life. Thus, you are laying up treasures upon earth; and, what is the inevitable consequence? Your heart is with your treasure; you are ‘laying up for yourselves treasures in heaven;’ and, unless you ‘give all you can,’ you are of all men most miserable!

How then can we recover the revival of religion? I fear, only by a general repentance, and a return to our first works. This is the only way to avert the judgment of God, which otherwise will come upon us as a nation. And if we do not repent, I am persuaded that God will visit us for these things, and that we shall see the same desolations here which we have seen in France; and the more so, because we have sinned against more light, and greater mercies.”

– From Wesley’s journal entry for August 17, 1773 (often cited as his “Causes of the Inefficacy of Christianity” sermon note). Published in The Works of John Wesley, Vol. 4 (Journal from Nov. 1, 1766, to Sept. 28, 1773), 521-522.

Instead of channelling resentment upward into revolutionary violence, Methodism and related movements channelled it inward and outward into self-discipline, mutual aid, literacy, and restraint. Drinking fell. Savings clubs, friendly societies, and schools proliferated. People learned to read - not to digest radical pamphlets alone, but Scripture, tracts, and practical manuals. This mattered economically as much as spiritually.

In Turchin’s terms, the revival reduced internal violence and increased cooperation, buying time.

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Reform instead of rupture: Parliament responds

The French Revolution also shocked Britain’s ruling class into reform. Fear concentrated elite attention in a way complacency never does.

Parliament did not democratise overnight, but it began to adjust extraction and legitimacy rather than defend every privilege to the end. Over the next decades came:

• incremental electoral reforms,
• the gradual dismantling of the most egregious forms of corruption,
• early factory legislation,
• and eventually the abolition of the slave trade and slavery itself.

These were not altruistic gestures alone; they were stability-preserving adaptations. Elites had seen what happened when legitimacy evaporated completely.

Importantly, many reformers - Wilberforce being the obvious example - sat at the intersection of Evangelical morality and elite power. The revival didn’t overthrow elites; it re-moralised them.

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Industrialisation as a release valve, not a guillotine

At the same time, industrialisation transformed the resource equation. This is where Malthus would have expected pressure to intensify - and initially, it did. But markets, technology, and institutional flexibility altered the outcome.

Factories created appalling conditions early on, but they also:

• expanded total output,
• generated employment faster than population growth,
• and, crucially, created new pathways for upward mobility.

Here again, moral reform mattered. A purely extractive industrial capitalism could have driven England toward the same resentment spiral as France. Instead, new norms - often driven by religious conviction - emerged around:

• paternalistic factory practices,
• education for workers’ children,
• limits on child labour,
• and the idea (radical at the time) that employers had moral obligations beyond wages.

These were early, uneven, and imperfect - but they mattered. They softened the sharpest edges of transition long enough for productivity gains to accumulate.

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Why this breaks the “inevitability” narrative (ontological hope)

From the outside, France and England looked structurally similar. But their moral and cultural responses diverged.

France:

• framed crisis as class war,
• delegitimised institutions wholesale,
• replaced moral reform with ideological purification,
• and burned social capital faster than it could be replenished.

England:

• interpreted France as a warning, not a model,
• combined industrial innovation with moral restraint,
• reformed institutions without annihilating them,
• and redirected revolutionary energy into social renewal.

In the language of systems theory, England changed the feedback loops. Violence did not become self-reinforcing. Elite competition was tempered by reform. Popular grievance was absorbed by religious, social, and economic channels rather than detonated.

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The deeper lesson

This is why I resist reading Turchin - or Malthus - as prophets of doom. They describe real dynamics, but history shows that human foresight, repentance, and reform can bend the curve.

England did not escape pressure. It escaped (delayed?) catastrophe.

And it did so not by denying economics (as Marx would later attempt), nor by suppressing unrest with brute force alone, but by aligning:

• technological expansion (industrialisation),
• institutional adaptation (reform),
• and moral renewal (revival).

The parameters changed mid-flight - precisely because people were watching a neighbour plunge into revolutionary hell and decided, consciously, to do something different.

That possibility - seeing the crash coming and choosing another path - is the element history rarely rewards and the equations therefore struggle to model. It is not randomness, but the fragile space where human foresight might still interrupt what almost always happens.

So where does that leave us?

Malthus teaches us to respect constraints. Turchin shows how feedbacks and lags turn pressure into cycles of rise and collapse. Marx demonstrates what happens when economics is denied altogether. Capitalism shows how incentives and technology can extend production and delay the reckoning - sometimes dramatically. Taken together, the lesson is sobering rather than reassuring. Nothing in the historical or mathematical record suggests that human societies reliably learn in time. Moses’ realism still stands: hope can be stated clearly, even beautifully, while despair about what people will actually do remains entirely justified.

And yet, this is not the same thing as fate. The maths does not prove collapse is metaphysically sealed; it shows what happens when behaviour remains unchanged. The models trace where the path leads, not that it must be walked. Human societies are not closed systems, even if they behave like them for long stretches. Technology can raise carrying capacity. Markets can coordinate effort. Institutions can be reformed. Moral frameworks can still reshape incentives and behaviour at scale. None of this guarantees survival - but it does preserve uncertainty.

Which brings us back to where we started. Faced with the pattern, despair feels honest. History offers no comforting counterexample. When someone says, “We’ll never survive,” the only reply available is Westley’s dry, almost irritating calm: “You’re only saying that because no one ever has.” It isn’t optimism. It isn’t reassurance. It is simply a refusal to confuse overwhelming historical evidence with ontological finality. The pattern warns us where we are heading; whether that warning changes anything remains, as it always has, unresolved.

In the next post, I want to add the layer the equations cannot see: the different strategies humans deploy under pressure, and how those strategies interact with economics to amplify collapse - or, occasionally, to open a narrow path to renewal. The maths matters. But so do the people inside it.