Science fiction predicts change, explores consequences, and studies potential futures. It teaches adaptability and open mindedness in the face of change. It performs "imaginary experiments" to see how people react to change before the change actually happens, and provides a different perspective on our world. Science fiction writers see the future as a consequence of our present day. In this light, it is also a vehicle for social analysis and an opportunity to experiment with new concepts and their effects on humanity and the world. Science fiction presents many issues from many different points of view for us to examine.