India, Feb. 14 -- In an age where Wi-Fi signals decide our moods and smartphones rarely leave our palms, it sounds almost satirical to say that the most reliable companion in times of crisis is not a 5G tower but a humble radio set. Yet every year on February 13, when the world observes World Radio Day, we are reminded that the simplest technologies often outlast the loudest innovations. The date commemorates the establishment of United Nations Radio in 1946, but its relevance goes far beyond institutional history. It celebrates a medium that refuses to fade, because it is woven into the daily lives of millions. Marshall McLuhan once described radio as a "hot medium"-intense, intimate, and capable of engaging listeners at a deep emotional...