Are robots racist? Is software sexist? Are neural networks neutral? From everyday apps to complex algorithms, technology has the potential to hide, speed up, and even deepen discrimination. Using the Black Mirror TV series as a starting point, we will explore a range of emerging technologies that encode inequity in digital platforms and automated decision systems, and develop a conceptual toolkit to decode tech promises with sociologically informed skepticism. Students will apply design justice principles in a collaborative project and learn to communicate course insights to tech practitioners, policymakers, and the broader public.