Thanks AL.
I am kinda interested in this at the moment because some alts have been writing stuff to our ext t that we don't have knowledge about and actively deny. We are trying different strategies to determine the reality of what is being said and why it is being said. We want to know if it is something we need to act on or merely the product of a disturbed mind. So this topic about the possibility of it being fantasy or the reality for those alts is a hot topic for us personally atm.
One thing we have been doing recently (and I wouldn't recommend this to others - it just works for us in our particular circumstances right now) is to video ourselves reading out loud what these other alts have written.
What I have found is that we switch and I get to see stuff that I don't otherwise see.... that is, these other alts coming out. And the effects of their ... experiences.