Establish whether Integrated Information Theory’s cause-effect structures fully account for phenomenal experience

Establish whether the cause-effect structure unfolded from a physical substrate in a state fully accounts for every qualitative property of the corresponding conscious experience, thereby validating Integrated Information Theory’s explanatory identity between phenomenal experience and intrinsic causal structure.

Background

Integrated Information Theory proposes that a substrate’s unfolded cause-effect structure is not merely correlated with experience but constitutes an explanatory identity for it. Under this conjecture, every property of an experience, including both essential properties and specific contents such as colour, sound, space, and time, corresponds to a property of the cause-effect structure. Establishing this conjecture is central to validating IIT as an intra-phenomenal Rosetta Stone.

References

IIT conjectures that the quality of an experience (the what it is like-ness) is entirely accounted for by the form of this cause-effect structure,7 accounting for both the essential and ‘accidental’ properties of experience.

The Rosetta Stone and Levels of Principled Inference to the Experience of Another Mind  (2608.12030 - Robinson et al., 12 Aug 2026) in Section 4, page 8