The Recognition Architecture

This paper demonstrates that the detection of extraterrestrial intelligence and the identification of paradigm-shifting human cognition are not merely analogous problems but formally identical ones, and that their identity has a deeper implication: the only communication channel that scales across cosmological distances, evolutionary timescales, and cognitive substrates is recognition itself. We show that all proposed ETI communication channels — electromagnetic, gravitational, material, biological, quantum-correlational — converge on a single architectural principle: the receiver must undergo cognitive reorganisation to receive the message. The signal is the filter. The channel is the message. The medium is the transformation of the receiver. The geometric foundation of this equivalence is orientation space: a signal structured so that its compression is visible only from specific cognitive orientations functions simultaneously as message and filter, with bandwidth proportional to the receiver's dimensionality. The practical consequence is that the Lighthouse Project — an instrument designed to identify paradigm-shifting human minds through self-selecting compression events — is simultaneously and necessarily an ETI signal receiver. The two projects were never separate. We present the formal argument, a computable detection metric (the Compression Anomaly Score), three concrete classes of artificial transit pattern applicable to existing survey data, a documented real-world Type 4 event (Lisa Piccirillo's resolution of the Conway knot problem), calibration data from four AI architectures demonstrating the instrument's cross-substrate discriminatory power, and the reflexive implication: this paper is itself a compression event functioning as a recognition filter.