You should get one of the occult enthusiasts to check if Tulpas leave ghosts ;)
More seriously, I suspect the brain is already capable of this sort of thing—dreams, for example—even if it’s usually running in the background being your model of the world or somesuch.
You should get one of the occult enthusiasts to check if Tulpas leave ghosts ;)
More seriously, I suspect the brain is already capable of this sort of thing—dreams, for example—even if it’s usually running in the background being your model of the world or somesuch.