> The author, a dynamic system, perhaps felt the emotion of the characters as she charted through the course of the story

This does mesh with the Zodeistic framework I just mentioned in another reply to you. You could certainly isolate and describe the ideas behind those characters, how they live within the author's mind, and how the book codifies an interaction between those ideas.

Extending further: I think there is more evidence that SpongeBob SquarePants is real, than that he is not real. A significant portion of organisms I personally know have structures in their brain which are able to simulate imagery and behavior of SpongeBob at will, reciting memories and generating new states of SpongeBob. AI is now like doing this shit on crack.

He's an enduring cultural archetype, a distributed organism(s), lossily replicated and encoded in the physical structure of millions of complex dynamical systems that we call human beings. In this sense, many cultural archetypes and even the gods of old civilizations can be seen to have been manifested to some degree: ascribed desires, and having actions taken in their name, serving their "purpose" or whatever.

I don't introduce a spiritual element to any of this: it's an entirely physical phenomenon which requires an agreement on certain definitions of what "living" can mean, but they are definitions which I don't think are hard to get people to agree on. One thing is we have to agree that something can have multiple forms/presentations, i.e. just because SpongeBob SquarePants doesn't physically exist with a body matching our internal representation of him, the concept represents a bundle of other concepts that can drive biological processes to preserve them and fulfill their ascribed desires.