According to the Heisenbergprinciple, once we observethe particle and try tomeasure it, we disturb theway it behaves. This in turnchanges what we see.Maybe that’s the problemwith online identity. If youlook in one place you see oneaspect of a person’s identity. Ifyou look in another place youﬁnd another aspect. Whatyou’re looking for, whereyou’re looking for it and theinstruments you use to do sowill determine what you see.