From cybernetics derives the meaning of entropy as the tendency of any closed system, for example an organization, to move from a less to a more probable (unstable) state, from order to disorder. Open systems, which appear to contradict entropy by not disintegrating strictly according to physical laws, take in energy and materials from their environment. Many have a property we call "life". But even living systems can only hold back the inevitability of ultimate death and decomposition.