When Neeraj Chopra’s javelin moved through the warm Tokyo air to land at the 87.58-metre mark, a tiny village in northwest India, located 5,847 kilometres away from the Japanese capital, lit up in joy. The joy spread like wildfire to engulf a sixth of humanity. Within hours, children carrying sticks double or sometimes triple their size came out on the streets and started throwing what they imagined were javelins. And a country of 1.4 billion people celebrated its first track-and-field gold at the biggest sporting event in the world.