Extropy, according to the official Extropian Principles, is “a measure of intelligence, information, energy, vitality, experience, diversity, opportunity, and capacity for growth.” Extropianism, then, is “the philosophy that seeks to increase extropy.”
The principles themselves are five in number: Boundless Expansion, Self-Transformation, Dynamic Optimism, Intelligent Technology, and Spontaneous Order. They make up the handy Extropian acronym: BEST DO IT SO!
Innumerable suns exist; innumerable earths revolve around these suns in a manner similar to the way the seven planets revolve around our sun. Living beings inhabit these worlds. from On the Infinite Universe and Worlds, Giordano Bruno, 1584