Explaining on Instagram: "In 2012, Pavel Durov, the maverick founder of Russia’s largest social networking site VKontakte (VK), staged an unusual stunt from his St. Petersburg office. Standing at an open window, he began launching paper airplanes, each one folded from a 5,000-ruble banknote, worth roughly $160 at the time, sending them gliding down toward the street below. The sight quickly drew a crowd, and what began as a curious and playful scene soon spiraled into chaos. Onlookers scrambled