For much of the last two hundred years, truth has not disappeared so much as changed shape.

What we mean when we say, “this is true”, and what we expect truth to do for us has shifted under pressure from science, war, media, politics, and technology. The result is not simply confusion or decline, but a deeper unease: a sense that truth no longer holds the authority it once did, even as we need it more than ever.

This is not a story of truth being lost. It is a story of truth being reworked.

At the beginning of the nineteenth century, truth was largely assumed to exist independently of human beings. A statement was true if it corresponded to reality, if it accurately described how the world is.

This understanding was inherited from the Enlightenment, with its faith in reason, observation, and progress. Science was seen as a privileged route to truth. Even where knowledge was incomplete or mistaken, truth itself was treated as stable, external, and waiting to be discovered.

Philosophers such as Immanuel Kant complicated this picture without dismantling it. Kant argued that we never encounter the world “as it is in itself”; we experience it through mental structures, categories, concepts, forms of perception. But crucially, this did not abolish truth. It placed limits on our access to it.
Truth still existed. We were simply fallible knowers.

This distinction mattered. It preserved the idea that disagreement could be resolved, that error could be corrected through reference to ‘the truth’.

By the late nineteenth century, that confidence begins to fracture.

Industrialisation, social upheaval, and the collapse of old moral authorities created conditions in which the neutrality of truth itself came under suspicion. No thinker captured this rupture more forcefully than Friedrich Nietzsche.

Nietzsche argued that what we call “truth” is often a set of metaphors that have been used for so long we forget they are metaphors at all. Truths are not simply found; they are produced, shaped by culture, language, and the needs of those who assert them.

From this point on, truth is no longer innocent.

It becomes bound up with perspective: who is speaking, from where, and in whose interest. This does not mean that anything can be true. But it does mean that claims to truth must now account for their conditions of emergence.

The question shifts subtly but decisively: not only Is this true? but How did this come to count as true?

The twentieth century subjects truth to pressures it had never faced before.

Two world wars, totalitarian regimes, mass propaganda, and the rise of broadcast media reveal something disturbing: truth can be overwhelmed not just by lies, but by repetition, spectacle, and exhaustion.
Philosophers respond by turning their attention to language and politics.

Ludwig Wittgenstein suggests that truth depends on the “language games” we are playing. What counts as true is inseparable from the rules, practices, and forms of life within which statements make sense at all.

At the same time, Hannah Arendt draws a crucial distinction between opinion and factual truth. Opinions can differ legitimately. Factual truths: what happened, who did what. are far more fragile. Once eroded, they cannot easily be rebuilt.

Arendt warns that truth does not vanish dramatically. It erodes quietly, through indifference, cynicism, and the refusal to care whether something is true at all.

Here, truth becomes an ethical concern. Its survival depends not only on accuracy, but on attention and responsibility.

In the late twentieth century, critique hardens.

Post-structural and postmodern thinkers argue that truth is never separate from power. Michel Foucault introduces the idea of “regimes of truth”: the systems of institutions, norms, and expertise that determine which statements are authorised and which are dismissed.

Truth, through this perspective, is not simply discovered and then distorted by power. It is generated within power.

The central question shifts again: not Is this true? but Who gets to decide?

This line of thinking exposes genuine harms: how scientific authority, legal language, and professional expertise can exclude, silence, or dominate. But it also carries a cost. If all truths are constructed, contingent, and strategic, the grounds on which we might defend any truth begin to weaken.

Suspicion becomes a default posture. Confidence in shared reality begins to thin.

In the twenty-first century, these philosophical shifts collide with technology.

Digital platforms fragment attention and personalise information. Algorithms curate what we see. Competing narratives circulate faster than verification can keep up. Emotion, identity, and belonging often outweigh evidence.

The term “post-truth” enters public life, not to announce the end of truth, but to name the collapse of its authority.

Truth now appears as something endlessly disputed, politically weaponised, exhausting to defend and easily dismissed as “just your view”

The problem is no longer simply falsehood. It is the erosion of the shared conditions that allow truth to matter.

And yet, the need for truth has not diminished.

We still rely on factual truth to act together. We still appeal to truth when something feels wrong, when harm is denied, when responsibility is evaded. Even the loudest claims that “truth is relative” tend to collapse when applied to lived experience.

What has changed is not our dependence on truth, but our relationship to it.

Truth is no longer something we assume will hold on its own. It requires care. It requires practices, institutions, and habits of attention that sustain it.

Perhaps the task now is not to return to a naïve belief in absolute objectivity, nor to surrender to endless suspicion, but to relearn what truth asks of us.

Not certainty. But commitment.

Not purity. But care.

Not dominance. But the willingness to hold a shared world in common even when it is fragile.