Gisela labouvie-vief referred to a certain type of thinking, which acknowledges that adult predicaments must sometimes be solved in relativistic terms, as
Post-formal thought refers to a situation when someone start to have a flexible attitude in accepting a complex moral or intellectual subject. Post-formal thought tend to can only be acquired as people hit maturity stage (around 25 - 45 years old) and the magnitude would drop as people hit old age.