Key Points Riotur’s early estimate put the crowd at about 5.1 million across Rio, including roughly 2.6 million in Copacabana. The night was engineered for scale: 13 stages, 12 minutes of fireworks launched from 19 barges, plus a drone-and-projection segment reported at around 1,200 drones. The hidden workload was heavy: more than 100 sea rescues […]