In “Fish Farming and the Boundary of Sustainability,” Courtney Carroll examines the uneasy tension between technological development and environmental consequence. In undertaking this topic, she invokes both enduring considerations of humanity’s relationship to the environment and more contemporary concerns of sustainability. How, Carroll implies, can a balance be found amidst the competing forces of conservation, control, and consumption? By examining this question alongside the implications of technological optimism, the author identifies an underlying problem that has been explored by countless writers. Yet, far from making this contribution redundant, the extent to which these larger questions have already been considered underscores the importance of students adding their voices to contemporary debates. Although all writing classes aim to support students in developing the skills needed for participation in an enlightened citizenry, it is clear that in tackling this topic, Carroll has found an opportunity to join one of the most compelling conversations of our time.