The theorists of Part 5 spent forty years explaining how societies hold together and reproduce themselves. The last group asks a different question: what happens when the arrangements they described start to come apart — and whether the society we now live in is the same kind of thing at all.

Their answers converge more than their vocabularies suggest, and the convergence is worth having.

Beck: risk society

Beck's distinguishing features of modern risks, and this is what makes the argument more than an observation that life is dangerous:

They are manufactured, not natural. Earthquakes and plagues were external. Nuclear contamination, climate change, chemical residues and antibiotic resistance are products of decisions. There is no one to blame for a volcano; there is always someone to blame for these.

They are invisible and require expertise to perceive. You cannot see radiation, dioxins, particulates or a genetic risk. Which means that whether a risk exists at all becomes a matter of contested scientific claim — and hence a political question about whose science counts.

They are unbounded. They cross borders, classes and generations. Beck's phrase: "poverty is hierarchic, smog is democratic."

Individualisation

Bauman: liquid modernity

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The convergence, and where they differ

All three agree that this is modernity transformed rather than superseded; that individualisation is structural rather than a change of attitude; that risk and uncertainty have become organising features; that traditional collective identities have weakened; and that responsibility for systemic problems has been shifted onto individuals.

Where they differ:

Beck is the most sociological and the most focused on institutional transformation and on hazard. Giddens is the most psychological and the most optimistic, seeing genuine gains in autonomy and reflexivity. Bauman is the most pessimistic and the most attentive to those for whom liquidity means insecurity rather than freedom.

And against all three, the postmodernists — Lyotard's incredulity towards metanarratives, Baudrillard's simulation, Jameson's cultural logic of late capitalism — argued for a genuine rupture. Giddens and Beck both explicitly rejected this, and the postmodernist position has substantially faded, partly because its strongest claims were not researchable.

The criticisms, which are serious

The empirical evidence for detraditionalisation is mixed. Class remains a strong predictor of life chances (4.1.3, 4.3.6); intergenerational mobility has not increased in most countries and has fallen in some; family form has changed enormously in some societies and much less in others; and the claim that ascribed characteristics no longer structure lives is not supported.

Will Atkinson, Anthony Elliott and others have argued that Beck and Giddens substantially overstate the decline of class, and that the evidence shows continuity where they claim transformation. Beck's response — that class categories persist as "zombie categories," institutionally alive and analytically dead — is more assertion than argument, and the critics have the better of this exchange.

The generalisation problem. These are theories of Western Europe, and in places of a specific European middle class. Their applicability to societies with different trajectories is contested, and Beck's later work on cosmopolitanism and "methodological nationalism" was partly an attempt to address this.

The periodisation problem. Was there ever a "solid" modernity of the kind described? Historians of the family, of work and of religion have found far more instability, mobility and diversity in the supposedly settled period than the contrast requires. The comparison may be with a remembered stability that did not exist.

And the vagueness problem. "Liquid," "reflexive" and "risk" are evocative and hard to operationalise, and the literature applying them is heavier on illustration than on measurement.

What holds up

The risk argument is largely vindicated. Climate change is the case Beck's framework was built for: a manufactured, invisible, unbounded, expertise-dependent, institutionally unowned hazard produced by industrial success. "Organised irresponsibility" describes the governance failure precisely.

The individualisation of responsibility is well documented across welfare policy, employment, health and education: the shift from collective provision to personal responsibility, from defined-benefit to defined-contribution pensions, from public risk-pooling to individual insurance, and from structural explanation to personal resilience.

The pure relationship account describes real change in intimate life in many countries, and the demographic evidence — falling marriage, rising cohabitation, later and fewer children, higher divorce — is consistent with it, whatever one thinks of the theory.

And the expertise crisis is more acute than Beck predicted. The condition he described — expertise necessary, contested and distrusted, with the public required to adjudicate between rival authorities — is now a central feature of political life in most democracies.

Why it matters

It names the shift from collective to individual responsibility, which is the single most consequential political change of the last forty years in the rich democracies — and Beck's formula, "biographical solutions to systemic contradictions," states it more precisely than most of what has been written since.

It supplies the framework climate change requires. Manufactured hazard, invisible without expertise, unbounded across borders and generations, produced by industrial success, and institutionally unowned. Beck wrote it in 1986 about nuclear power, and it fits.

It explains why more freedom coexists with more anxiety. The woman in the opening has options her grandfather could not imagine and no script, no institution and no collective to fall back on when the options go wrong. Both halves of that are structural, and treating either as a personal matter is the error the whole tradition identifies.

And it closes Part 5 by returning to Part 4's question. Durkheim asked what happens when the rules stop fitting (4.2.3). Weber asked what a disenchanted world can tell you about how to live (4.3.3). Simmel asked what freedom without attachment does to a person (4.4.5). The theorists of late modernity are asking the same questions with better data, which is a fair description of what a discipline is for.