Definition: The term "coexistency" refers to the situation in which two or more entities are able to coexist together, functioning harmoniously and in harmony with each other. In this context, coexistence can refer to the existence of two or more things that interact with one another in a mutually beneficial manner, leading to a stable and continuous state. The term was first introduced by the philosopher John Locke in his work "Locke's Treatise on Human Nature" (1650), where