From HomoExcelsior

Someone who wants to manage the world as a precious resource, as opposed 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. [Jaron Lanier, SPIN Magazine november 1991]

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