"A system usually wants to evolve to a state with large disorder, i.e. maximum entropy. It can be compared to a sugar cube dissolving in a glass. While the sugar dissolves, the system composed of water and sugar slowly increases its entropy. The reverse process -- a spontaneous formation of a sugar cube -- is never observed,"
Pincho says... That just means that its hard to trap gravity towards points, and easier to release it, that gravity has scalar physics that help it to escape becoming trapped.