the modal argument

The modal argument is a philosophical idea that explores the existence of a "greatest possible being," often interpreted as God. It considers different ways things could have been, known as "possible worlds." If it's logically necessary that a greatest being exists in some possible world, then this being must exist in all possible worlds, including our own—meaning it exists necessarily. This argument uses the concept of possibility and necessity to suggest that the existence of a perfect, all-powerful being is not just a possibility but a necessary reality.