The command is simple: Lights out. For a child, it is the signal for bedtime—a moment of protest followed by the slow surrender to sleep. For a soldier in a trench, it is a fragile shield against enemy eyes. But in our modern, hyper-connected era, "lights out" has taken on a more ominous meaning. It is the sudden, sinking plunge into darkness during a blackout, or the final, irreversible shutdown of a failing industry.

Yet, perhaps we need more "lights out" moments.

"Lights out" doesn’t have to mean a disaster. It can be a ritual. It can be the switch you flip at 10 p.m., turning your bedroom into a cave. It can be a city’s decision to dim its bridges for bird migration season. It can be a single hour—Earth Hour—where we collectively marvel at how loud the quiet can be.