Well, a decrease of entropy is the oposite of said, isn´t?
I mean a smaller entropy means a system more probable, so a decrease of entropy require a system transition from a high improbable to a very probable with less internal configurations.
What you think?
Well, if you use the formula of entropy. The answer would be yes, because it´s proportional to temparature and a bigger universe, is colder universe. So..it should increase.
However it´s no a quantical formula..its classical one.