This short philosophical essay by Byung-Chul Han argues that the defining illnesses of the twenty-first century are neurological conditions born not from external threats but from an excess of internal positivity. Across eight densely argued chapters, Han traces a paradigm shift from what he calls disciplinary society to achievement society, diagnosing the psychological toll of a culture that has replaced prohibition with unlimited possibility.
Han opens with the claim that every historical era has its signature pathology. The bacterial age ended with antibiotics, the viral age was overcome through immunological technology, and the twenty-first century is defined by neuronal illnesses: depression, attention deficit hyperactivity disorder (ADHD), borderline personality disorder (BPD), and burnout syndrome. These conditions are not infections caused by foreign agents but breakdowns caused by excess. The twentieth century operated according to an immunological paradigm organized around the distinction between inside and outside, friend and foe, with the Cold War as its clearest expression. Han contends that this paradigm is collapsing. Otherness is disappearing, replaced by difference, which does not provoke an immune reaction. He critiques Italian political philosopher Roberto Esposito for assuming society still operates along immunological lines, arguing that phenomena such as immigration no longer carry genuine immunological force. The real source of harm is no longer the foreign but the Same: overproduction, overachievement, and overcommunication. He engages with French social theorist Jean Baudrillard, who identified the violence of the Same but still framed it in immunological terms. Han argues that neuronal violence is systemic and immanent; it does not deprive or exclude but saturates and exhausts.
Han then argues that the disciplinary society described by French philosopher Michel Foucault, organized around hospitals, prisons, barracks, and factories, has been replaced by achievement society, characterized by fitness studios, office towers, banks, and shopping malls. The inhabitants are no longer obedience-subjects governed by the prohibitory "May Not" but achievement-subjects driven by the affirmative "Can." Both regimes serve the drive to maximize production, but positivity proves more efficient, and the social unconscious switches from "May Not" to "Can." Han engages with French sociologist Alain Ehrenberg, who locates depression in the transition between these societies. Han partly agrees but criticizes Ehrenberg for ignoring the systemic violence of achievement society, including social atomization and relentless pressure to achieve. He rejects Ehrenberg's equation of the contemporary human type with the philosopher Friedrich Nietzsche's "sovereign man," a self-governing individual subject to no external authority, contending instead that the figure becoming a mass phenomenon is Nietzsche's "last man," who does nothing but work. The depressive achievement-subject is an
animal laborans, a term from political theorist Hannah Arendt describing the human being reduced to laboring, that exploits itself voluntarily, simultaneously predator and prey. The disappearance of external domination does not yield freedom but makes freedom and constraint coincide. Auto-exploitation proves more efficient than external exploitation because the feeling of freedom accompanies it.
In his chapter on boredom, Han argues that the excess of stimuli fragments attention. Multitasking amounts to a regression to the vigilance of wild animals, which must divide their attention among threats. He distinguishes hyperattention, a scattered awareness that rapidly shifts between tasks, from deep, contemplative attention, which makes cultural achievement possible. Drawing on German cultural critic Walter Benjamin, who described deep boredom as a "dream bird that hatches the egg of experience" (13), Han laments the vanishing of tranquility and idleness. A person intolerant of boredom merely accelerates into running, but someone who tolerates boredom might discover an entirely different form of movement, such as dancing, a luxury that escapes the achievement-principle. The
vita contemplativa, the life devoted to contemplation, connects to an experience of being in which fleeting and inconspicuous things reveal themselves through sustained attention. Han cites the painter Paul Cézanne's ability to perceive the fragrance of things as an example of contemplative depth and invokes Nietzsche's warning that eliminating the contemplative element will turn civilization into a "new barbarism" (15).
Han critiques Arendt's attempt in
The Human Condition to rehabilitate the
vita activa, the life of action. Arendt argued that modern society degrades human beings into the
animal laborans. Han contends that her analysis does not account for achievement society: The late-modern
animal laborans does not surrender individuality but possesses an ego nearly bursting, hyperactive and hyperneurotic. He proposes that the modern loss of faith, extending beyond God to reality itself, makes life radically fleeting, reduces it to bare activity, and elevates health to divine status. He extends Italian philosopher Giorgio Agamben's concept of bare life, existence stripped down to sheer biological survival, arguing that achievement society has reduced everyone to this condition, with a crucial difference: This bare life is not expendable but holy and must be preserved at any cost. Everyone carries an internalized labor camp, simultaneously prisoner and guard. Arendt herself inadvertently endorses the
vita contemplativa by quoting the Roman statesman Cato's dictum that one is most active when doing nothing, a passage originally embedded in the Roman orator Cicero's praise of contemplative withdrawal.
In his chapter on the pedagogy of seeing, Han draws on Nietzsche's educational philosophy from
Twilight of the Idols. Learning to see means cultivating patience and mastering inhibiting instincts. The
vita contemplativa is not passive openness but active resistance to intrusive stimuli. Without what Nietzsche calls "excluding instincts," action degenerates into restless reaction. Han introduces the distinction between positive potency, the power to do something, and negative potency, the power not to do. Negative potency differs from simple impotence and is essential for contemplation. Zen meditation, which seeks the void by freeing oneself from intrusive stimuli, exemplifies this active process, while hyperactivity is paradoxically an extremely passive form of doing.
Han offers a pathological reading of American author Herman Melville's short story "Bartleby, the Scrivener," in which a copyist falls into silent immobility and develops symptoms of nervous exhaustion. Han argues that Bartleby's famous phrase, "I would prefer not to," signals not contemplative refusal but apathy and a lack of drive. Bartleby remains an obedience-subject of disciplinary society rather than a depressive achievement-subject. Han critiques Agamben's interpretation, which elevates Bartleby to a figure of pure, absolute potentiality. The story's ending, in which Bartleby dies alone in a prison called the Tombs, underscores a negativity of hopelessness incompatible with messianic readings.
Han distinguishes two forms of tiredness, drawing on Austrian writer Peter Handke's "Essay on Tiredness." The first is solitary "I-tiredness," which isolates and distorts perception. The second is a fundamental, reconciliatory tiredness described as "more of less of me," a diminishing of the ego that shifts gravity from self to world. This tiredness trusts in the world, inspires, and loosens the strictures of identity. Handke envisions a community founded on fundamental tiredness: not one of kinship but a gathering of singularities connected through a friendly "and." Han connects this to negative potency: Exhaustion stems from positive potency and renders one incapable, while inspiring tiredness stems from the power of not-to. The Sabbath, originally meaning "stopping," exemplifies a day free of all purposive activity.
In his final chapter, Han synthesizes his arguments. He reinterprets the writer Franz Kafka's retelling of the Prometheus myth as an intrapsychic scene in which the achievement-subject wages war against itself. He argues that the Freudian psychic apparatus, structured by repression and prohibition, belongs to disciplinary society and cannot account for the achievement-subject, which operates under "Can" rather than "Should." The achievement-subject has shed the commanding Other, making its maxims freedom and pleasure rather than duty. Without an external instance to provide recognition, a crisis of gratification arises, since one cannot reward or acknowledge oneself. Depression, unlike hysteria, is formless and resists the conflict model of classical psychoanalysis. The late-modern ego has shifted from the repressive superego to the seductive ego ideal: The achievement-subject projects itself onto an idealized image it can never reach, and the resulting gap produces auto-aggression. The subject has transformed from subject to project, but auto-compulsion replaces external compulsion, and the project turns into a projectile aimed at oneself. Han critiques Agamben's theory of
homo sacer, a figure of bare life that can be killed without legal consequence, as anachronistic: In achievement society, the achievement-subject who considers itself
homo liber, a free person, simultaneously becomes its own
homo sacer. Unlike in the society of sovereignty, however, this bare life is not expendable but holy and must be preserved at any cost. Capitalism absolutizes survival rather than pursuing the good life, reducing existence to vital functions. Han concludes that the
homines sacri of achievement society are "too alive to die, and too dead to live" (51).