The Fifth Fundamental Interaction: Tenson Particles and the Emergence of Temporal Force in Cosmology

This paper introduces the concept of a temporal force, mediated by the hypo- thetical tenson particle, as a fifth fundamental interaction in addition to gravity, electromagnetism, the weak force, and the strong force. We propose that the tem- poral force governs the irreversibility of time, the directionality of causality, and the arrow of entropy, thus providing a missing foundation in both physics and phi- losophy. By integrating this framework with relativistic cosmology, we demonstrate how the Big Bang not only generated matter-energy and space but also instantiated the flow of time through the dynamics of tenson particles. Observational strategies for detecting traces of this interaction are proposed, and philosophical implications such as eternal recurrence and causality are discussed.