Starting with the idea that in science fiction many plots use the device of terraforming of alien planets to make them more suitable for human inhabitation, this paper argues that more recently new works take this macroplot in a different direction: the need for reforming human beings on Earth to make them more suitable for inhabitation through terraculturation. Further, the work of terraculturation would necessarily lead to significant political dissolutions of national and state formations in order to make political structures more supportive of inhabitory practices. Cultural changes from terraculturation would then interactively precipitate and be pushed along by myriad reorientations taking place at every level of human activity. Examples are provided of literary works already modeling and encouraging this cultural reorientation.