> nobody on the plane is going to carpool with other passengers they've never met I would put a good $25 on there being almost zero flights in the world where

> nobody on the plane is going to carpool with other passengers they've never met I would put a good $25 on there being almost zero flights in the world where every passenger has no relation to every other passenger (to the point where you'd need N individual cars to transport them.) I'd add another $10 on top to bet that there isn't a situation where all of those passengers would refuse to get on a train / bus / coach with the others if the plane wasn't available.