In Christian theology, “original sin” in the strictest sense refers to the human condition after the Fall and not to the first human sin itself. The fall is the cause of the condition of original sin: because of Adam and Eve’s sin, subsequent human beings somehow “inherit” a disposition toward sin and an attraction toward evil that makes it inevitable that they will sin. On some stronger interpretations, all subsequent human beings are also justly regarded as guilty by God from birth, even before they have sinned themselves. Even apart from worries about the historicity of the fall, the philosophical challenges posed by this doctrine are obvious. How can people living now be morally responsible for the sins of the first human beings? What is the mechanism by which sin and guilt are “inherited” from past generations? If it is inevitable that all human beings will sin, can God justly punish them?