Aristotele used to call this primum movens. > Since every change has a cause, the origin of the chain of causes and effects must be a cause without cause (firs

Aristotele used to call this primum movens. > Since every change has a cause, the origin of the chain of causes and effects must be a cause without cause (first cause), which is a primary source of motion without motion. The thought is logical, but there are also cosmological theories that do not presuppose the existence of a "first unmoved mover". - https://en.wikipedia.org/wiki/Big_Bounce https://en.wikipedia.org/wiki/Big_Bounce - https://en.wikipedia.org/wiki/Loop_quantum_gravity https://en.wikipedia.org/wiki/Loop_quantum_gravity - https://en.wikipedia.org/wiki/Carlo_Rovelli https://en.wikipedia.org/wiki/Carlo_Rovelli - https://en.wikipedia.org/wiki/Conformal_cyclic_cosmology https://en.wikipedia.org/wiki/Conformal_cyclic_cosmology In the oscillating models, the universe follows infinite, or indefinite, self-sustaining cycles. The time may emerge only in a thermodynamic or statistical context. A sequence of events could "simply" only imply a correlation of adjacent quantum energy states.