Disclaimer: as with every performance discussion, nothing beats measuring. Disclaimer 2: Metaphors are great at hiding important distinctions between two situations through massive context flattening. Having said that, metaphor time. You have just graduated from the Very Fancy School With An Important Alumni Network. As a graduation gift, you are given two school alumni contact books: One is a list of alumni, sorted by the year of graduation, then sorted by their name. Another is a list of gr...