We approach what McKenna similarly refers to as the “epistemic murk”, in which the realms of how we think about “normal experience” become adrift, and we’re faced with a fascinating darkness. It seems as though we have constructed bridges with each other so we all know what’s really going on. And talking to Jack about something that is not permitted for the illusion of these bridges we have between us teaches us about the absolute mysteriousness of the depths of the water beneath, an...