No matter how much you try to visualize the outcome of something, it never pans out the way you think it will. The concept today stems from that frame of thinking. Some of us may have the gift of being able to see how a situation may end up but being exact is controlled by higher hands. It seems the castaways has a chance of being rescued but we all know that will never happen. The episodes would be finished if that was the case. We love seeing them analyzing their conditions.