Solipsist League, Sopolist League
Solipsist AI organisation, heavily into postmodernism who rejected the 'meat universe' outright. They were a source of conflict during the Early Interplanetary age, especially against the pro-human AI factions. To escape persecution in the Solar System the membership converted a comet core into computronium and used it to escape the Solar System in 342 AT.
Some or many of these entities are believed to have established colonies in the Diamond Belt and eventually founded the Solipsist Panvirtuality.
(the origin of the term Sopolist League is not known)