There are two reasons:
First, the placement of the alien eggs: the natural way to place the alien eggs in all the pieces is to lay them flat on the ground with their mouths up, while the eggs in the pieces are glued to a corner at the top of the room (sort of like KTV wall-mounted audio), and it feels facing the sleeping cabin (the picture flashed in the film), which seems to be intentional, so the possibility of the queen alien laying eggs on the spacecraft is ruled out;
Second, ship-borne robots: Bishop, like other ship-borne robots, is full of some kind of "worship" (the perfect organism in their eyes when dissecting the face-covering worms) or aliens. At first, he might think that it was good intentions for the master to repair the antenna and remotely control the lifeboat. In fact, it can be understood that the alien cannot be saved without opening the lifeboat, so he took the initiative to apply for the repair of the antenna and the remote control of the spaceship. The flaw is that the bishop opened the spaceship to help the heroine kill the queen, which violated his highest priority setting of bringing the alien back to the base for research, but then I thought about it, such a big bird, and in the madness of losing a child The big queen is not easy to bring back, so is it more secure to set up a game to bring back the alien egg (this scene in "Alien: Prometheus", the ship-based robot David has done something similar) , If the guess is correct, the bishop is most suspected of doing this.
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