According to Parfit, Nozick, Shoemaker, and other Empty Individual View theorists (but especially Parfit), each of whom in his own way is willing to lower the significance ordinarily accorded to the metaphysical boundaries between us (i.e., "open up," metaphysically speaking), the remaining boundary—if we are willing to deny, as they are, the survival and identity assumption (the traditional Closed Individual View condition that a person survives only as long as there exists a temporally continuous entity identical to that person, i.e., that personal identity is closed under individuation and identification by such known borders)—should, or can most reasonably be drawn (i.e., closed) along our psychological borders. But the metaphysical (and metapsychological) significance of the Psychological Boundary can also be dissolved, further clearing the path to our Open Individual View of Personal Identity.