Researchers propose mathematical bridge to understand alien minds

Researchers from the University of Wisconsin and Monash University have published a groundbreaking paper that tackles one of philosophy’s oldest puzzles: *How can we ever truly know another mind?* The team—Kallum Robinson, Giulio Tononi (creator of Integrated Information Theory), Naotsugu Tsuchiya, and Matteo Grasso—proposes a mathematical framework to bridge the 'acquaintance gap' between subjective experiences. Their paper, titled *The Rosetta Stone and Levels of Principled Inference to the Experience of Another Mind*, appears in *Qualia Structure* (Springer Nature, forthcoming) and is available as arXiv:2608.12030.

The core of their work lies in two competing models: the *Qualia Structure Paradigm (Qstr)*, which maps experiences through their relationships to other experiences, and *Integrated Information Theory (IIT)*, which defines an experience by its causal structure within a system. Neither model claims to fully decode another mind but instead offers a 'Rosetta Stone'—a shared mathematical language to compare experiences with measurable precision. Using category theory, they define 'levels of structural correspondence' to quantify how closely two minds might align. While the 'acquaintance gap' remains unbridgeable, this framework provides the first systematic way to infer similarities between minds, with implications for AI consciousness, brain-computer interfaces, and even the study of animal cognition.