It reveals that the Reaper cycle is meant to preserve organic life by creating synthetic life before those species that develop organically are selectively culled and preserved in Reaper form to allow more primitive species to evolve.
It reveals that the Reaper cycle is meant to preserve organic life by creating synthetic life before those species that develop organically are selectively culled. The Catalyst characterizes it as an ascendance, where advanced organic races are preserved in Reaper form and allow more primitive species to evolve.