Extinct ai culture in the Gliese 229 system. Apparently seeded from isolationistic ais escaped from the solar system sometime in the 5th century, the ais employed replicators to convert the surface of Gliese 229 B I ("Tessera") into energy collectors and computronium. At some point their society crashed, and disassemblers eroded most of the installations. Only fragmentary information remains, hinting that the collapse was not due to any outside threat or violent conflict.