Learn more physics! If at the Big Bang (t=0) energy was
uniformly distributed inside the singularity, then entropy would
have been maximal and nothing would have happened. What's
missing? We're used to many systems like weakly interacting
gases where uniform distributions maximize entropy. For systems
with gravitational attraction, clumping can actually increase
entropy. Think of it this way. As things clump, they lose
gravitational potential energy. That energy can go into high-
entropy thermal forms, such as thermal radiation or heating of
materials. Black holes provide a good example of this. Stuff
falling into a black hole increases its entropy more than the
entropy loss from the missing stuff. Only when the surroundings
become extremely cold and empty can entropy increase via Hawking
evaporation of the black hole. (published on 07/21/2011) Follow-
up on this answer.