weird head question, plurality
@Oneironott I can only give you my Mystical Rationalist pain in the butt position on this. :)
I guess I'd start by interrogating those categories and getting the specifics of what you mean by them.
What would be the distinction between a "headfriend," "tulpa," and and "spirit?"
Can you imagine a hypothetical thoughtform that would split the difference between one or more of these categories?
What would be the consequences of each, objective and subjective?