Consciousness Research Is Still Geocentric: Why IIT, Global Neuronal Workspace, Higher-Order Theories, Recurrent Processing, Predictive Processing, and Biological Naturalism Need a Subtractive Test

Abstract

Consciousness research has fallen into a geocentric structure in which each theory places its chosen property at the center and builds experiments, measurements, formal models, and classifications around it. If integration is placed at the center, systems possessing integration are classified as conscious. If global availability is placed at the center, systems possessing global availability are classified as conscious. The same pattern applies to recurrence, higher-order representation, prediction, embodiment, biological organization, and computation. Each theory refines its starting point and then reuses that refined starting point as a criterion of consciousness. The conclusion circles back to the premise. This circularity creates the deepest blind spot in consciousness research. The field constructs increasingly sophisticated theories while leaving the foundation beneath them unsettled. Measurement becomes more precise. Neural correlations accumulate. Mathematical models grow more elaborate. Predictive power improves. Yet the first question remains untouched: is the selected center necessary for consciousness to occur? Integration, recurrence, broadcasting, representation, prediction, memory, report, and action may accompany consciousness, modulate its contents, and support its functions. Their importance does not establish constitutive necessity. Correlation, function, implementation, and constitution occupy different causal positions. This paper reverses the order of inquiry through subtraction. Subtraction is both Occam’s razor applied to consciousness research and a form of sculpture. Sculpture does not add a shape to the material. It removes what is unnecessary and exposes the form buried within. Subtractive inquiry proceeds in the same way. It removes specific contents, reports, actions, memories, higher cognition, neural structures, species-specific mechanisms, implementations, and substrates, then extracts the causal relations that remain. Its purpose is not to shrink theory. It is to remove theoretical sediment and excavate the natural skeleton that makes a conscious event possible. Subtraction also closes a theory’s escape routes by its own method. If a feature is claimed to be constitutive, removing it must collapse the target phenomenon. If the explanation can be transferred to another function, representation, or implementation, the original feature loses its claim to necessity. Features whose removal preserves one present, one subject, one affected system, and one continuing causal history are repositioned as implementation, modulation, access, representation, memory, or enrichment of experience. Only features whose removal destroys this minimal target remain constitutive candidates. The same logic underlies major paradigm shifts in the history of science. Such shifts did not arise from endlessly adding explanatory elements. They arose when an assumed center was removed, unnecessary commitments were cut away, and a simpler natural order became visible. The transition from geocentrism to heliocentrism began by re-examining the center rather than multiplying auxiliary structures around it. Consciousness research requires the same operation. Before adding another center, it must remove the centers it already assumes. This method repositions existing theories within a causal order. Integration, recurrence, prediction, attention, global availability, embodiment, biological regulation, computation, memory, and report move from definitions of consciousness to functional roles in candidate generation, competition, stabilization, access, modulation, transmission, and implementation. A constitutive theory must explain more than an organized state. It must explain the causal sequence through which multiple possibilities form one present, one candidate changes the same system, and the consequence of that change becomes the starting point of what follows. Appendix B applies this subtraction to Temporal Closure. Temporal Closure proposes a minimal causal container of conscious occurrence composed of multiple candidates, the earlier loss of causal eligibility among non-selected candidates, change in the same system by the selected candidate, and inheritance of that consequence. Appendix C compresses this structure into a minimal formalization specifying candidate sets, present-forming capacity, same-system change, historical inheritance, intervention conditions, and falsification conditions. The stagnation of consciousness research arises from an order of inquiry that keeps expanding the superstructure before excavating the ground beneath it. Precision built on an unsettled foundation only renders the wrong path in higher resolution. The required reversal is clear: Remove the center before choosing the center.Test necessity before expanding theory.Identify constitution before classification.Ask what causal order forms an event before measuring a state. The next leap in consciousness research will not begin by adding another explanatory element. It will begin when Occam’s razor is turned toward the foundations of theory, explanatory escape routes are closed, unnecessary structure is carved away, and the natural skeleton buried beneath existing theories is brought into view.