A mirror-lined box closed in daylight would theoretically contain light that bounces indefinitely, provided no light is absorbed. However, the stipulation of no absorption is problematic, as light is typically absorbed and re-emitted by surfaces. The number of reflections could be extraordinarily high, but verifying the presence of light inside the box poses a challenge since any detection method would absorb light. Additionally, the Compton effect raises questions about photon energy loss with each reflection. Overall, while the concept is intriguing, practical verification and the physics of light behavior complicate the scenario.
