"Not only did Nico Ross survive, but he also managed to assemble an armor suit from discarded parts, found the hiding place of another survivor, Freddy, and successfully left the Solar System... This is utterly unreasonable. An individual from a lost civilization should not possess such scientific knowledge and remarkable fitness at the same time."
"Moreover, the emergence of the survivor's camp, where Nico Ross and Freddy were born, is also very coincidental. If the black hole and the enemy brought by the Traveller did indeed release deadly pathogens into the Solar System, then the probability of survivors existing on Earth would be less than one ten-thousandth. Furthermore, there were two survivors, which is not plausible."