What would a decisive experiment look like?

Regardless of which explanation is correct, certain experimental results would materially change the evidence picture. These are tests that competing hypotheses predict different outcomes for.

• Blinded cross-observer matching: multiple observers, tested independently, produce descriptions or drawings of the stimulus imagery that are scored for correspondence by judges who don't know which drawings belong together. Exact symbol-and-coordinate matching beyond chance would be unprecedented; broad category similarity would be consistent with expectation-driven perception.
• Pre-registered protocol with independent witnesses: sessions conducted with pre-specified endpoints, video recording of participants' verbal reports in real time, and neutral third parties present.
• Information-transfer test: if the perceived glyphs carry information, a participant should be able to report a hidden message encoded in the stimulus that untrained viewers under the same state cannot see. No such result has been publicly demonstrated.
• Stimulus-manipulation controls: altering grating pitch, wavelength, or coherence while blinded to condition. If reports track physical parameters identically in matched non-DMT conditions (e.g., hypnagogia, sensory deprivation), the phenomenon's specificity claims weaken.
• Public dataset: release of participant-level data from the pilot study so the reported >1,000-participant figure can be independently audited.

This page describes test design at a conceptual level only. It does not provide instructions for obtaining, preparing, or dosing controlled substances, nor encouragement to view lasers directly.