I figured I'd put a little list together for reference.
HEADVOICES:
1. First appeared inside the mind. For example,
· Laurie first evidenced in a dream
· Josephina evidenced during a traumatic hallucination
· Nathaniel was born directly from the body's reflection
2. They have roles tied to the body's consciousness, and cannot leave headspace of their own volition. They are always present, even if this presence is unconscious.
3. They can take over the body's consciousness spontaneously, sometimes against their will (in the case of triggers).
OUTSPACERS/ INSPACERS:
1. First appeared outside the mind. For example,
· Chaos, a fictive, "walked in" to headspace and decided to stay
· Genesis appeared in the body's physical living space
· Xenophon was found in a physical sink
2. They are not tied to the body's consciousness, and can freely enter/ exit headspace as they wish; it is not uncommon for them to leave for days.
3. They can only use the body's consciousness if given explicit permission, and a very strong mental channel. Even then, they cannot be "triggered," nor can they "front" in the same way a headvoice can.
Most importantly, outspacers can "walk around" in physical reality, being seen clairvoyantly. This ability is natural to outspacers, but it has to be taught to headvoices, who find it extremely difficult.