Is multiplicity caused by physical or sexual abuse in childhood?
Not necessarily. At present, there are a lot of views as to the origins of plurality, and a lot of systems believe it simply doesn’t matter. Some people think it has to do with differing brain structures, and others with how the mind is conditioned by societal and cultural cues in childhood. Our view is that plurality, or an inclination towards plurality, is something which is naturally present in everyone to some degree or another. The way in which it is experienced depends upon what the individual mind (or minds) choose to make of it. (thanks Amorpha!