The fact that our identities are a path integral through a unique 4 dimensional spacetime curve does not undermine the utility of first-order characterizations of the resulting value. We do it all the time: where are you from? When were you born? What did you study? What's your favorite ice cream flavor? I am simply adding, and characterizing, an additional factor: how often do you dream? None of the answers to these questions tell the whole story of a person, but they are useful nevertheless.