Ark 15's shuttle launch system has a catch that someone has to release a lever from outside the shuttle, inside the airlock in the mother ship for it to get free to take off. That is absurd. They are on a journey to unknown, they didn't know what problems and troubles lie ahead, how could they think that at least one person has to stay back in the mother ship just to release the lever, and there was no time for him/ her to reach the shuttle and take off after releasing the lever. He/ she was doomed to die in a catastrophe. What if nobody volunteers to give up his life to stay back in the mother ship to release the lever, then nobody leaves on the shuttle, and everyone dies. Thinking about various movies and novels, in which there was a sole survivor, he/ she cannot release the lever and still escape in the shuttle, so all those story have a sad ending. Such a system is unthinkable to install in a ship for exploration of the unknown.