Indeed that law is why time has a direction. The energy required to re-instate order is enormous where to allow entropy to occur requires no energy. I believe the same law is why civilisations decay as ours is currently doing.
My personal theory is that at the 'Big Bang' there was one massively energetic particle which had no mass, what I like to call the primeval photon. The purest entity in the universe with, because it was one, the lowest state of entropy possible, perfect order. At the big bang that photon burst forth, and started to decay into matter as spacetime came into being and all the four forces we now know were born. Ever since then pure energy has been decaying into more and more matter with less and less energy. However I believe that ultimately there will be another low entropy state achieved where the universe is nothing but matter (gathered into so-called black holes), Great big black lumps of pure matter with zero energy. A few trillion years from now they will coalesce into one incredibly gigantic black sphere and cease their motion and even draw in spacetime itself at which point the universe in any shape or form will end.
