Uncanny Valley

The "uncanny valley" is appropriated by Boothby as a piece of indirect empirical evidence for the Lacanian claim that the Thing-dimension (das Ding) is structurally embedded within the Other, and that it is this dimension — not mere unfamiliarity or mechanical imperfection — that generates anxiety in the encounter with the almost-human. In robotics, the uncanny valley names the well-documented dip in human affective response that occurs when a robot's likeness to a human being becomes sufficiently close: rather than increasing comfort, hyper-realistic resemblance produces revulsion. Boothby's theoretical move is to interpret this affective dip not as a cognitive mismatch effect but as a structural Lacanian phenomenon: the robot, once it achieves sufficient resemblance, begins to elicit in the observer the obscure sense that beneath the human surface there lurks the Thing — the alien, pre-symbolic kernel that is simultaneously intimate and radically foreign, what Lacan calls "extimate."

This re-reading of the uncanny valley thus functions as a phenomenological disclosure of what Lacan theorizes at a higher level of abstraction: that anxiety arises not from absence or lack, but from the threatening proximity of the Real. As the definition of Anxiety above makes clear, anxiety signals not the loss of the object but its terrifying closeness — the risk that the gap constitutive of desire is about to collapse. When a robot "crosses the threshold," it no longer safely represents the human; it begins to present the void beneath the human mask. The Thing erupts as the excess that cannot be domesticated by the Symbolic — and it is this eruption, not surface imperfection, that accounts for the uncanny dread.

This concept appears once in diaeresis-richard-boothby-embracing-the-void-rethinking-the-origin-of-the-sacred (p. 38), where Boothby is building a revisionary account of the sacred by displacing the Oedipus complex from its classical Freudian centrality and re-centering Lacanian theory on the enigma of the mother's desire and the Thing-dimension (das Ding) within the Other. The uncanny valley functions in this argument as a kind of empirical corroboration — a phenomenon from outside psychoanalytic discourse that points back toward the theoretical core Boothby is developing. It sits at the intersection of three cross-referenced canonicals: Das Ding (the irreducible alien kernel at the heart of the Other), Anxiety (the affect produced by the Real's proximity rather than its absence), and the Monstrous Mother (the archaic, pre-Oedipal face of the Other in which das Ding is most starkly concentrated).

As an extension of the Das Ding concept, the uncanny valley names the experiential register — the phenomenological surface — at which das Ding becomes visible or, more precisely, felt as a disturbance. As an extension of Anxiety theory, it specifies a non-clinical site where the Lacanian inversion (anxiety as proximity, not absence) can be observed cross-culturally and empirically. Boothby's move is therefore both a specification and a re-application: he takes the uncanny valley as robotics knows it and re-describes its underlying mechanism in Lacanian terms, transforming a technological curiosity into evidence for the extimacy of the Thing within any sufficiently "human" Other.

Embracing the Void: Rethinking the Origin of the SacredRichard Boothby · 2023 (p.38)

What if the 'uncanny valley' opens up when the robot begins to elicit a sense of the Thing in the Other

The phrase "sense of the Thing in the Other" is theoretically loaded because it fuses two distinct Lacanian registers — das Ding (the pre-symbolic, Real kernel) and the Other (the symbolic field of language and alterity) — locating the Thing not as a freestanding entity but as an eruption within the Other itself, which is precisely the extimate structure Lacan theorizes; the word "sense" further marks this as an affective/phenomenological event rather than a cognitive recognition, aligning it directly with the Lacanian account of anxiety as the body's signal of the Real's proximity.