Many characters from Horizons ancient past have influenced and shaped events 1,000 years later in Aloys adventures. Anita Sandoval developed the Caldera of Yellowstone Analytic Nexus artificial intelligence, also known as CYAN, to monitor and stabilize the Yellowstone volcano from erupting as seen in The Frozen Wilds. Doctor Elisabet Sobeck created the world-saving Project Zero Dawn, the powerful artificial intelligence GAIA, and is the genetic originator of Aloy. That said, theres one ancient human whose legacy and influence in future Horizon games is left in doubt after events seen in Horizon Forbidden West: the self-aggrandizing Ted Faro.