Entropic Gravity
Gravity is weird. On the face of it, it seems to directly contradict the second law of thermodynamics, that overall entropy in the universe must increase.<p>Entropy generally involves "spreading out." It eliminates gradients, it doesn't fill them up. It is weird that there is a way to increase overall entropy by bringing diffuse parts together.<p>Despite the term "entropic gravity", I still don't understand how this or other versions of gravity do not violate the second law. Does anyone here?