Got the upgrades Maya was researching SiVA for? As documented in Chioma's logs during Veil Containment. The very research she also used to enhance humanoid bodies, i.e. The Cloudstriders. We assumed he healed our ghost acting as a conduit for the Traveler's power/'light'. I think he used his upgrades to revive our ghost. I think that Cayde was fully constructed of Quicksilver Nanites kinda like the Liquid Metal Terminator. Recent events have me thinking me about Cayde. Cayde never died. He's virtually immortal. Listen to the logs, Maya was trying to enhance SiVA for integration into Exos. And Cayde was right there. Now we have an idea what Quicksilver Nanites are, what they do. 😇👍💠 It's just a theory. This season... upon reaching X guardian rank, I can't remember... 6 or 7 would make the most sense. At Cayde's memorial... Ikora has a VO message talking about Cayde. Something to the effect that he really isn't gone... he always shows up whenever she truly needs him. I'm paraphrasing... but that happened, you might have a marker there if you never triggered it. What if Cayde is the first Quicksilver Nanite Exo? 👀 To add, the moment Cayde became an Exo, [i]"Saturn. No, someplace else. Someplace colder. This moon has been almost completely converted, a sarcophagus of ice and iron. Stone towers rung round with glaciers, rooted deep within a heart of snow. I came here flesh and bone. Gave everything to the ice. Started over. [u][b]Rebooted[/b][/u]".[/i] And the moment (my theory) Cayde got his upgrade: [i]"The coast is different, beautiful and unbroken and timeless. It teems with new life. Every big brain in the system has their sights on the Academy. We were there for the Ahamkara, parasitic reptilian critters that appeared out of thin air. Inexplicable genome. New proteins. So much potential. And me? I'm there for her. Dr. Maya Sundaresh. She's poured into the research, on the brink of another breakthrough, focused on devouring every new data point. Brilliant. Driven. Beautiful. [Copy of Dr. Maya Sundaresh Ishtar Collective ID card] I can see her so clearly. Dark hair split into smoothed, shimmering strands fanning over her forehead. Gray irises blooming as she looks up from her work to see me standing there beside her. [u][b]Realigning . . .[/b][/u]"[/i]