[[Reductionism]] falls into pitfall when property comes from interaction between parts like: > Molecules that build living cells aren’t alive but together they create an organism that can _consume_ energy, _reproduce,_ and _evolve_ Therefore better definition considering Emergent [[property]] is: > The system is the sum of **the interactions between** its parts. ^definition But time also is the case and the system changes so, even better definition is: > The system is the sum of the **temporal** interactions between its parts. ^time