The system is the sun plus the earth. The sun is constantly burning out, become more disordered and spreading that energy around. As with the example of the ice cube, subsystems may become ordered. Perhaps we cannot state exactly how evolution proceeded, but we can say that it could do so without violating the 2 nd law. Aging The personal part of the 2 nd law is that we grow old and die.
Humans dream and write about the fantasy of reversing the aging process.
We see plenty of science articles about studies along these lines. However, what scientists have recently been learning is that we should be able to offset the aging process in some way. Of course, it will require an increase in entropy in other parts of the earth, i.e. it will require energy to do so. In general, we can observe that most life forms exist long enough to reproduce then they grow old and die. One school of thought suggests that our bodies were designed by nature to fall apart after the age of reproduction was over.