Origin stories of the economics discipline give considerable credit not only to philosophy, but also to poetry. And many canonical economists have reputations for polymathy. But interdisciplinary economic inquiry, like that which has become increasingly common since 2008, is often treated as both novel and ill-fated, in part because contemporary orthodox economists lack the commitment to pluralism necessary for fruitful interdisciplinary collaboration. This chapter looks to a 2020 Climate Fiction (“CliFi”) novel, Kim Stanley Robinson’s Ministry For The Future, for models of interdisciplinary collaboration between economists, critical theorists, and climate scientists. In particular, Robinson centers an unlikely pair of Utopian thinkers – British economist John Maynard Keynes and American theorist Fredric Jameson – who at crucial junctures in their careers took seriously what is also the project of Robinson’s titular Ministry: treating future generations as a political constituency deserving of political representation in the present.