"After a certain amount of time, the probability of rescue becomes so low as to be nonexistant, and with it goes the hope that one will be forthcoming." Coldly, emotionlessly logical. That was simply what would happen, though it took far longer in stubborn, too-resiliant humans. It was far too unlikley that in a place where they could not even transmit some proof of their continued existence that they would ever be found, and yet each and every one of them had some dream that some day someone would find them.