Robert Reed wrote a lovely SF novella, "Do I Know You?" (published in 1993), set on a space station where everybody has a brain implant that lets them look up b

Robert Reed wrote a lovely SF novella, "Do I Know You?" (published in 1993), set on a space station where everybody has a brain implant that lets them look up basic biographical information about everyone they meet (at least, every other station resident). A long-term visitor to the station is jealous of how everybody there seems to be a close personal friend of everyone else, and gets the implant for himself. Hijinks ensue.