This open access book advances a modest defence of technological utopias. While technological utopianism is not devoid of risks and elitism, their benefits should not be discounted in an overall assessment. Rather than rejecting them based on a too narrow definition of utopianism, we must acknowledge their potential to exceed the individualist vs. collectivist dichotomy ascribed to traditional utopias. The author argues, with reference to Rawls' idea of the basic structure that technological utopias challenge our understanding of the scope and location of justice and, thereby, advance the idea of justice. The book critically reviews the most recent literature in political philosophy, where utopias are understood as ideal theories of justice and sides with recent contributions to Utopian Studies, where utopias' potential to estrange from the present and galvanize action are underscored.