City of Hope: Hoffnungburg suggests that artificial intelligence and digital twins are created and changed under human control. It expresses the appearance of a virtual city that changes according to the information called “heartbeat” that reflects the emotional state of the audience. It presents an artwork for the “audience” by expressing the emotions the audience feels in the virtual space. Ultimately, it makes the audience confirm that the subject that can control human-made by-products such as artificial intelligence is human.