ABSTRACT
This paper examines the implications of artificial intelligence for the practice of psychotherapy by distinguishing between algorithmic capabilities and human existential capacities. Drawing on phenomenological and existential philosophy—particularly the work of Husserl, Heidegger, Levinas, and Waldenfels—it proposes an existential reduction that brackets what can be replicated by AI to clarify what remains irreducibly human. While AI systems can simulate therapeutic techniques, they lack the existential ground of Care (Sorge), ethical subjectivity, and responsivity that structure human being-with-others. These capacities are ontological conditions that make psychotherapy possible as a lived, relational encounter rather than techniques or skills. Through clinical illustration and philosophical analysis, the paper argues that psychotherapy cannot be reduced to technique without losing its essential character. The rise of AI reopens the question of what it means to be human. The figure of the “last scribe” serves as a historical analogy, suggesting that while methods may change, existential capacities persist beyond technological displacement.