Quote Originally Posted by xoxo View Post

Also I think you need to look up "prime mover"
Prime mover
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Look up prime mover or prime movers in Wiktionary, the free dictionary.

Prime mover may refer to:

A machine that transforms energy from/to thermal, electrical or pressure to/from mechanical form, typically an engine or turbine

Contents

1 Philosophy and theology
2 Social Science Theory
3 Railways
4 Haulage
5 Entertainment

Philosophy and theology

The prime mover, primum movens, an unmoved mover in the philosophy of Aristotle, later used by Saint Thomas Aquinas in his cosmological arguments, as a "first cause" of existence

Social Science Theory

A hypothetical person that has a significant impact on society and history due to the exercise of their free will, unfettered by external psychological influences or social forces; also the name of the theory that affirms the existence and possibility of such people.

Regarding socio-political complexity, the term Prime Mover describes any influence upon a social group that leads to a higher degree of societal complexity.

Railways

Prime mover (locomotive), a component of a locomotive

Haulage

Tractor unit or towing engine, a vehicle that provides the motive power to haul a load, as in:
Semi-trailer truck in Australian English
Ballast tractor, a heavy haulage road vehicle designed to pull or push heavy or exceptionally large loads
Artillery tractor, a military vehicle hauling an artillery piece
Steam tractor, a vehicle powered by a steam engine which is used for pulling
Tractor, a vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds
Maybe you look for the obvious definition I'm using instead of trying to devolve this into a semantics war