Stiegler developed the concept across Taking Care of Youth and the Generations (2008), where he argued that the destruction of attention by the cultural industries amounted to a crisis of care at civilizational scale. Without sustained attention, there is no care; without care, there is no knowledge, no skill, no relationship, no political community.
Applied to AI, the framework reveals that the question 'what is a human being for?' — Segal's twelve-year-old's question — has a pharmacological answer. The human is for the care. For the noticing. For the practice of attending to the world with enough patience and honesty to distinguish between what the machine produces and what one understands. The human is for the long circuit — the slow, difficult, irreplaceable work of becoming a person who knows something genuinely.
Care is both individual and collective. Individual care is the practitioner's management of her own pharmacological relationship with the tool. Collective care is the institutional construction of conditions under which individual care is possible. Neither suffices alone. Individual care within institutions that reward carelessness is a losing battle. Collective care without individuals practicing it is an empty structure.
The concept converges with several traditions — Aristotelian phronesis, Vetlesen's embodied care, the ethic of care tradition in feminist philosophy — but Stiegler distinguishes it by its pharmacological grounding. Care is required not because of ethical commitment in the abstract but because of the specific dual nature of every technical object, which demands management that no ethical principle can substitute for.
The concept was developed most systematically in Taking Care of Youth and the Generations (2008) and in the collaborative work of Ars Industrialis.
It connects to the broader philosophical tradition of Sorge (care) in Heidegger and to the ethics of care in feminist philosophy (Gilligan, Tronto, Noddings).
Care is practice, not feeling. The word names a discipline of sustained attention, not an emotional state.
Pharmacologically grounded. Care is required by the dual nature of technical objects, not by abstract ethical principles.
Individual and collective. Individual care requires institutional support; institutions of care require individuals who practice.
Permanent and unfinished. The pharmakon does not stop producing effects; care must therefore be ongoing.