Visitors to the exhibition can use the 'Cage Machine’ to create short lectures in the style of John Cage at the touch of a button: A random algorithm generates new texts from Cage's two lectures Lecture on Nothing¹ and Lecture on Something² . The visitor can follow on-screen how the words from the two lectures are put together to form a new, individual text. Each text is labeled with a serial number, date, and time of production, and a photograph of the visitor, who can take it with them and read it (aloud). All the texts will be collected and put together in a book. In this way, the book, which is produced anew for each exhibition, is defined by the visitors of the respective exhibition.