[quote][spoiler]I thought aloy brought Gaia back when she took down Hades and started to make the world what her "mom" (clone) wanted. [/spoiler][/quote] [spoiler]They need to first find a trace of GAIA'S programing, not just the recorded messages she/it left behind. Sylens followed a weak signal to find Hades so it's definitely possible there may be a GAIA signal somewhere too but as of the end of this game no one had found it yet. Aloy is listening to Sobek diaries at the end. The ones Sylens said would take a long time to process with the weakly powered Focus. So maybe the diaries will eventually lead Aloy to a backup GAIA system?[/spoiler]