Science fiction asks trivial questions like "What does it mean to be human?", "What does it mean to be alive?", "What is our place in the universe?", "Why did things turn out as they did, and how might history have turned out in different circumstances?", "In what ways might the future be better or worse than the present?", "What might be the impact of social or technological change?" or "How might a human and alien culture differ, and how might they interact?"
Literature, on the other hand asks such vital questions as "Dare I eat a peach?"
