Imponderable is an extensive research project that investigates the personal collection of American artist Tony Oursler. The project’s title, Imponderable, suggests the idea of something that cannot be determined with accuracy. Eighteenth-century scientists used the word to describe magnetism, electricity, and other then unquantifiable energies. For Oursler, these personal archives based on the history of science, optics, performance and religion also has roots in family history. Curated by Tom Eccles and Beatrix Ruf, Imponderable translates the original archival materials into a new exhibition; a new film, an installation and publication, exploring the boundaries of human belief and disbelief, the paranormal and mystical exploration. For the LUMA Foundation in Arles, this exhibition investigates new possibilities for archives and artistic production, which is one of its primary concerns.