Colonialism remains an inescapable blight on the present, lingering in the toxic, internalized mythologies and stereotypes that have outlived the regimes that created them, says historian Farish Ahmad-Noor. Examining why these prejudices and narratives persist (and sometimes thrive), he suggests a multidisciplinary approach to reject cultural obsessions with romanticized history and prevent this nostalgia from perpetuating past oppressions.