The Fundamental Alternative of Existence or Nonexistence
In John Galt's speech in Atlas Shrugged:
>There is only one fundamental alternative in the universe: existence or nonexistence—and it pertains to a single class of entities: to living organisms. The existence of inanimate matter is unconditional, the existence of life is not: it depends on a specific course of action. Matter is indestructible, it changes its forms, but it cannot cease to exist... Life is a process of self-sustaining and self-generated action. If an organism fails in that action, it dies; its chemical elements remain, but its life goes out of existence.
I believe Rand was incorrect here in presenting the fundamental alternative between existence and nonexistence as exclusive to living organisms. Non-living entities also have conditional forms of existence. A star, for example, is an organised process sustained by certain physical processes, such as nuclear fusion and gravitational equilibrium. Its continued existence as a star depends upon the continuation of these processes; otherwise, like life, the star ceases to exist, although the matter remains.
This alternative as such applies to any entity, insofar as its continued identity depends upon particular physical processes, arrangements, or conditions.