Why Do People Wait Near the Door Before the Train Arrives?
Ordinary choices often hide invisible systems.
People gather near train doors because uncertainty about crowding makes position valuable. The hidden mechanism is anticipatory advantage.
Passengers often choose their waiting position long before the train arrives.
A few meters closer to the door can mean a seat, an easier exit, or less crowding. Small advantages become important when many strangers compete for limited space.
The hidden mechanism is anticipatory advantage. People prepare for future bottlenecks before they exist.
People think they are waiting for trains. Often, they are waiting for opportunities.
