Stewards manage an environment as a precious resource. They are the opposite to extropians who want to let an evolution-like process change it (it should be noted that the term extropian used in this definition doesn't necessarily cover all people calling themselves extropians). The stewards and extropians represent divergent philosophies of change: stewards think about what is already there, while extropians think about how things can or will evolve. This is a polarity that goes back to the first hyperturings and beyond that to atomic and information age humanity. Among the archailect empires, the Caretaker Gods and Negentropy Alliance represent the principle of stewardship, whilst Keter, and the Technorapture Hypernation correspond to the extropian pole.