Peter Riezebos created 'Radical Doubt ' at the East China Normal university in 2015. As one of the artist's representative works with signature style, it has been presented at multiple exhibitions, like The Peninsula Shanghai, The Duolun Museum of Modern Art, M50 Shanghai, featured as background in several TV appearances, and also selected as cover of artist's catalog Plus Ultra which documents Peter Riezebos' global art adventure from 2014-2020. 'Radical Doubt' is inspired by Jean-Michel Basquiat, the philosopher René Descartes and the graffiti artworks at Shanghai M50 Creative Park, also reflecting on Riezebos' beliefs in critical thinking and systemic doubts.