Write a short story scene (500-800 words) that takes place entirely within a single room but spans three different decades (1990, 2010, 2030). Do not use date stamps or clear temporal markers like '10 years later'. Instead, rely entirely on the evolution of technology in the room, changes in dialogue slang, and the physical degradation/renovation of the environment to signal the time shifts. The protagonist must be the same age in all three segments, requiring the reader to infer that these are either memories, parallel universes, or a time loop. Ensure the emotional core of the scene remains consistent across the timelines.