Okay, I'm confused about the whole ghosts thing. Was aradia a doubledead ghost at the beginning of her session? If so, then couldn't doubledead ghosts destroyed in the bubbles technically inhabit robots? The whole concept is confusing AF, and I might not have understood act 7 completely as well. Please advise. And be gentle if the answer is that all of my favorite ghost characters are officially beyond hope.

Aradia was a ghost at the beginning of Hivebent but since Feferi hadn’t ask the Horrorterrors to create the bubbles yet, she remained a regular ghost on Alternia. The bubbles in the Furthest Ring were destroyed by the black hole Alt Calliope created so all the ghosts are gone completely.