So wait. (Destiny)

by Xenos , Shores of Time, Saturday, August 13, 2016, 14:34 (3117 days ago) @ Cody Miller

And yeah, Exos probably have a extremely lengthy lifetime. Cayde-6 (as an Exo), for instance, was body guard to Maya Sunderesh on Venus back during the Golden Age.

Which makes me wonder why our account of the golden age is so sketchy. Why not just… ask the Exos who lived in it?

The Exos we know now were deactivated at some point, and brought back to life by Ghosts (some of them through fixing them, some of them using the power of the Traveler). They actually lost their memories and many people are attempting to help them recover them, with very limited amounts of success. This seems like a cop out, but it's pretty in line with beings brought back to life by Ghosts, they seem to remember little if anything about their previous life.