ANONS, What is [x]?
"pre disposable" = disposed by parents/care givers. Mind "alters" (alternate personalities) are created by horrid abuse and conflict. Parents abusing their children creates conflicts between natural attachment of child to parent and the pain and horror of said abuse. They've been pre disposed, (disposable = thrown out) already fractured by their family history.
What does it take? [x]? To break the mind into functional programmable devices?
A drug? A treatment? A technology?