This chapter explores the historical parallels between nuclear energy development and space travel, emphasizing the mid-20th century advancements that have not been fully realized recently. It discusses the renewed interest in next-generation nuclear systems, particularly the innovative EBR2 liquid-sodium cooled fast reactor, highlighting its potential for efficient and scalable energy solutions. The conversation also addresses the importance of modernizing business models to facilitate commercialization and meet the growing energy demands of industries like data centers.