Say, Eliezer: Have you considered identifying yourself only with the part of your brain which asks clearly stated questions? This questioner is most clearly "you", IMO.
For example, I could draw the boundary of my selfhood as including the times/ parts of my brain, when I ask clear and well stated questions like: "What is this guy saying?"
Ori: I'd say short selling is exactly like borrowing money to buy stocks. Would you also ban leverage?