"After a few centuries, they tend to develop a personality of their own."Developing a personality after a long time is a logical possible next step to me in a magical entity. I can connect with that a whole lot more than just saying, "they are like that just because it's magic". Okey, that might be acceptable, but the AF rating would be a whole lot higher if it makes more sense than "just magic" and leave it at that. Those kind of books which leaves it to "just because it's magic" may catch my reader's attention but tends not to keep it. While the ones where it made more sense, not only catches my attention, but also has a higher likelyhood of keeping it.
The more authentic the world, the scene, the plot, the character is, the more I can easily suspend disbelief. Now a few concepts in the literary world here overlaps, like the concept of suspension of disbelief overlaps the authenticity factor. I guess it is sometimes inevitable that some concepts in the literary world would overlap as they play in the same field, so to speak. However, there is also a distinctness between the concepts of suspension of disbelief and authenticity factor. One is about suspending reality and the latter is about having as much reality in it as possible. And that is as far as I'm going with it's differences as this post is actually about the authenticity factor. There is a whole lot more to that "overlapping concepts" but that's also a discussion for another time.
So, to the book readers out there, what is your opinion about the authenticity factor of a story?