Everyone is afraid of something. The enemy must be, too. The more powerful they are, the more they have to lose to their fears. - Liu Cixin

The universe is a hollow sphere floating in the middle of a sea of fire. There are numerous tiny holes in the surface of the sphere, as well as a large one. The light from the sea of flames shines through these holes. The tiny ones are stars, and the large one is the sun.

In technological terms, space voyages and environmental protections seem different in character, with the former being intense, high speed, and adventurous, with connotations of state-of-the-art technology, while the latter is a gentle green public-service activity, one which, though involving technology, doesn’t give the impression of being as difficult as the former.
But that is only an impression. The true situation is: If we want to achieve the present targets for environmental protection, the technology needed is more difficult to develop than that for large-scale interplanetary travel.

That’s right. Five minutes into the all-hands meeting, the fundamental values of this totalitarian society had received the support of the vast majority of the crew. So, let me tell you, when humans are lost in space, it takes only five minutes to reach totalitarianism.