For the Hypotheticals, then, the Spin was meant to preserve us—and dozens of similar civilizations that had arisen on other worlds before and since—in our technological prime. But we weren’t museum pieces, frozen in place for public display. The Hypotheticals were reengineering our destiny. They had suspended us in slowtime while they put together the pieces of a grand experiment, an experiment formulated over billions of years and now nearing its ultimate goal: to build a vastly expanded biological landscape into which these otherwise doomed cultures could expand and in which they would
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