How to Wake Up The Ghosts is an immersive audiovisual installation where an artificial coral reef takes us on a reflective journey of a possible postnaturl future where coral as we know it has become extinct and human-installed artificial reefs are the only entities left to tell the story. The genesis of this artwork came from a 1756 scientific paper of coral illustrations, sparking an interest in this endangered ecosystem that was largely undiscovered at the time it was published. A poetic reflection of ‘more-than-human’ perspectives and technological mediation emanate from these coral ‘ghosts’. As a plural entity, its being carries opposing perspectives on what it means to be alive in a postnatural world. The visuals are co-created with AI models speculating on artificial coral structures, and the script is co-created by a machine learning model called GPT-2, which is fed texts from an amalgamation of writers and critics, such as Donna J. Haraway, Bruno Latour, Timothy Morton, Jean Baudrillard and Anna Lowenhaupt Tsing. The sculpture is 3D-printed using wood fibers.