Increase in entropy

Image evo_phy_feld

Potential reduction in the physical field

Adaption to the structure of the physical field simply takes place by potential reduction. The apple falls off the tree. The system Earth/apple is heading for a condition with the lowest energy level.

Image evo_phy_pot

The physical system is striving for the local minimum. It is not able to recognize the even more beneficial condition and arrive at it via a potential threshold. A ball will roll to the local spot with the lowest altitude.