abstraction is a metaphor for suicide, if it were reversible it would ruin the metaphor

also i remember seeing a gooseworx tweet saying it's not reversible

No spoilers but I think one of the main characters will abstract later and I don't think it's the kind of show that's going to let one of the main cast essentially die and stay that way for good. Would the question resolve no if characters can't be reverse abstracted but can somehow be saved outside the circus/reality thing even after abstraction?