How do locals know which market is most crowded for the right reasons?
Crowds are evidence. Understanding is interpretation.
Crowds are easy to see. Their causes are harder to understand.
The hidden mechanism is customer composition. A market crowded with tourists behaves differently from one crowded with restaurant owners, local families, or professional buyers.
Imagine two equally busy markets. One is filled with visitors taking photos. The other is full of locals carrying empty shopping bags and leaving with heavy ones.
A second-order effect develops because certain types of customers attract specific vendors, which then attract even more of the same customers.
People often think crowds reveal popularity. Locals learn that the more important question is popularity with whom.
