A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't care. Momentum is wht it wants to gather.
Change meansmovement. Movement means friction. Only in the frictionless vacuum of anonexistent abstract world can movement or change occur without that abrasivefriction of conflict.
Themore adaptability exists for a given kind of decision, the less risky it isto make plans for the future, and therefore the more likely it is that morepeople will make more plans in such areas.