Retroentropy (Physics)

A hypothetical physical phenomenon where entropy—the measure of disorder—would decrease over time within a closed system, effectively running backwards. In our universe, entropy always increases (the Second Law of Thermodynamics). Retroentropy would describe a cosmos where spilled milk leaps back into the glass, smoke reassembles into a cigarette, and scrambled eggs unscramble themselves. It's the physics of a world where time flows in reverse, order emerges spontaneously from chaos, and the universe gets younger and more organized with every passing moment.

Retroentropy (Physics) Example: "Watching the DVR replay of the vase shattering and then magically reassembling, I joked that my living room must be a local zone of retroentropy."

by Dumu The Void March 11, 2026