The laws of thermodynamics are some of the most important principles in modern physics, because they define how three fundamental physical quantities — temperature, energy, and entropy — behave under various circumstances.

But now physicists say they’ve found a loophole in one of these laws, and it could create scenarios in which entropy — or disorder — actually decreases with time.

Thanks to modern physics, almost everything in the Universe can be explained according to two theories: general relativity for the big stuff like stars, galaxies, and the Universe itself; and quantum mechanics, for behaviours on the atomic scale.