> struck me as smart because no one could necessarily know when they were coming But a train is a big, unique thing, and it takes very predictable paths. There

> struck me as smart because no one could necessarily know when they were coming But a train is a big, unique thing, and it takes very predictable paths. There are so many ways to track a train. Insiders in the rail company giving you tips, lookouts reporting from the place where the train is parked usually or at trackside, disturbances in the timetable of other trains. Attaching tracking equipment by insiders or intruders. > could vary pick up times Why is that an advantage for trains? Can’t any armoured truck do the same?