The influx of fans during this month’s college basketball tournament is a welcome lift to the city’s casinos and hotels after a dismal 2025, when the number of visitors fell 7.5 percent.

© Roger Kisby for The New York Times

Prediction market platforms like Polymarket and Kalshi go way beyond sports and politics. We take a closer look.

Prediction markets teach us to look at the future as gamblers, rather than as citizens.