modal metaphysics

Modal metaphysics is the study of the nature of possibility and necessity—understanding what could be, what must be, and what actually is. It explores different ways things might have been or could be, examining the nature of reality across various "possible worlds." Philosophers use modal metaphysics to analyze concepts like how things can vary, the conditions for their existence, and the reasons why certain facts hold true. Essentially, it investigates the fundamental principles governing what is possible, impossible, and inevitable in the fabric of reality.