You're right but that doesn't mean it can't be useful for understanding psychosis in general. Clinical psychologists could, for instance, take lsd to get some s

You're right but that doesn't mean it can't be useful for understanding psychosis in general. Clinical psychologists could, for instance, take lsd to get some sense of what their patients experience. It wouldn't be identical, but would offer at least some reference point for what it means to be psychotic.