The presumption the answer is Referent power. it is one of the Five Bases of Social Power, as characterized by Bertram Raven and his partners in 1959. Referent power in the initiative is the capacity of a pioneer to develop the regard and deference of his devotees such that they wish to resemble him.
Co-exstitence this is because with out one u can't have the other
The architecture style is different. romanesque churches came first. they were bulky, strong and had really thick walls. their windows were regular roman arched shapes. they usually have lower ceilings and not much light inside.
Gothic cathedrals came later. they have pointed arches, lots of tall windows for light stained glass and flying buttresses to help support the higher and thinner walls.
More versions of the same product will be out on the market, some may fail, leaving two or three different brands behind.
