Which unity this is about
Phenomenal unity: the unity of experience. Of the four unities the record keeps apart (ADR-024), this account is about that one only, and its second clause separates it from the self. The unity of a conscious world is achieved, on this account, before and without a self-model. What makes experiences one subject’s is a further question, answered, if at all, by the self-model and the modelled perspective (THEORY-064). The précis says so: “the question remains how such a cluster becomes tied to an individual first-person perspective” (LIT-568, p. 9). The functional integration here is not behavioural integration either: it is the binding of representational contents into one model, not the coordination of control systems into one agent.
Source
- Metzinger (2005), LIT-568, read in full in NOTE-460, §§1.1.4, 2.1 and 2.6. Page references are to the PSYCHE PDF.
What was actually shown
Globality. Minimal consciousness is “the presence of a world”: “the activation of a coherent, global model of reality … within a virtual window of presence … a model that cannot be recognized as a model by the system generating it”. All such a system would experience “would be the presence of one unified world”. Neither inner structure, subjective time nor “the perspectivalness going along with a first-person point of view exists at this point. We could call this ‘Selfless Snapshot Consciousness’” (p. 3). Metzinger calls this minimal notion “probably empirically empty” (p. 14): it is a conceptual floor, not a reported state.
Functional level. Phenomenal representata “are operated on by a highest-order integrational function”, which “dynamically unifies a large number of microcausal relations into a single and distinct causal role” (p. 7). This “highest-order binding” is called a “speculative concept”.
Neural level. The correlate “must be a distributed process which can be described as the realization of a functional cluster, combining a high internal correlation strength between its elements with the existence of distinct functional borders”, as in Tononi and Edelman’s dynamic core. The prediction: “any system operating under a conscious model of reality will be characterized by the existence of one single area of maximal causal density within its information-processing mechanisms”, and “what you subjectively experience upon experiencing your world as coherent is the high internal correlation strength between a subset of physical events in your own brain” (p. 8). There may be many integrated bundles, “and typically there will be one single, largest island of maximal causal density underlying the current conscious model of the world” (p. 9). “Currently no detailed theories concerning the possible neural correlates … do exist” (p. 7).
Without a perspective. “Perspectivalness is not a necessary condition for the ascription of conscious experience.” In certain spiritual experiences and “fully depersonalized states during severe psychiatric disorders … no conscious self and no consciously experienced first-person perspective exist”, and these are “non-subjective consciousness” (p. 17). They are global experiential states, so the world-model is still one.
So the précis argues the first clause on the representational and functional levels and offers the neural level as a hypothesis borrowed from others. It supports the second clause with a conceptual case and with phenomenological inference from reported states, which is all it claims.
What this does not say
- It does not say the dynamic-core hypothesis is established. The précis borrows it, and says the neural detail is unknown.
- It does not say what makes the cluster subjective. “The philosophical question remains of what it is that makes this cluster into the subjective world the organism lives in” (p. 9). The account is about unity, not about why the unified cluster is experienced at all.
- It does not say selfless experience is common or settled. The evidence for non-subjective consciousness is phenomenological inference from rare states, and reports of having had no self face an obvious objection the précis acknowledges elsewhere.
Connections
- THEORY-043 (minds made of agents). “One single area of maximal causal
density” has the shape of the anti-nesting principles that account
examines, closest to IIT’s exclusion postulate, in which only the local
maximum of Φ is conscious. It is motivated by the unity of experience
within one brain, not by a verdict about groups, which is what THEORY-043
asks of such a principle. But it is a prediction, not a computation, and
“typically” and “the largest” leave room for exactly the cases that
account cares about. It does not meet THEORY-043’s
promote_when. - The self-model (THEORY-064). That account is about the self; this one is about the world the self is later modelled in. They come from the same précis and are kept apart because the record keeps the unities apart.
- Korsgaard (THEORY-065). Korsgaard grants that a natural individual is “the seat of a unified consciousness” and denies that this gives unity of agency. This account says what that given unity is, on one theory. Together they mark the line ADR-024 draws: phenomenal unity is given by integration; unity of agency, on Korsgaard’s view, has to be achieved.
Note of 2026-11-01: Metzinger’s later minimal case
Metzinger’s later work qualifies this reading’s second clause; it does not confirm it. The new readings are “Minimal phenomenal experience” (2020, LIT-1946) and The Elephant and the Blind (2024, LIT-1943).
- Not a “selfless unified world”. His minimal case lacks world-content and any felt oneness (2020 p. 13; 2024 p. 477).
- Still a self-model of a kind. He describes it as a “nonegoic self-model” (2024 p. 477) and as “non-egoic self-modelling” (2020 p. 36) (THEORY-1299).
So what the evidence could show is unity without an egoic self-model, which is narrower than “does not require a self-model”. The worry about report this reading’s promote_when names is stated in the book itself and left open (p. 19; THEORY-1295). No status, title or warrant changes.