*** "Invisible Signal" explores the paradox of technological achievement and human disconnection through the lens of a narrator who, in inventing a revolutionary presence sensor, inadvertently becomes absent from his own social world. The story juxtaposes professional triumph with emotional isolation, crafting a poignant commentary on the cost of obsession and the subtle ways in which people disappear from each other’s lives. *** "Invisible Signal" By Harry Arabian Three months ago, I made the discovery of a lifetime—a presence sensor unlike anything else in the market. It was wireless, waterproof, needed no battery, and had a built-in power harvester that drew energy from its environment. Years of research, false starts, and midnight scribbles on napkins had finally paid off. The design was mine, the prototype contract was mine, and now, the production qualification tests were underway. I should have been ecstatic. But I wasn’t. Somewhere between my ...