Can spirits evolve?

In reading Mike's Blog as well as R J Stewart's books, one question that has come up for me is, Can spirits evolve? Mike seems to argue that spirits don't evolve and that the ethereal software they create is based off their understanding of the world and needs to be updated by people to understand contemporary concepts. R. J. Stewart discusses them in context of what they do and the sense that I get is that they might not evolve in a way that we understand, but that doesn't mean they don't evolve. That and applying a human centric perspective to the spirits is limiting because it is human centric.

My various experiences with the Goetia, elemental spirits, and even pop culture spirits is one that leads me to think that spirits are defined by function, but that the function can evolve. To argue that a spirit doesn't really understand modern day concepts could be accurate, but it might be even better to ask if it cares or if those concepts are relevant to its function. It might also be useful to ask how relevant humans are to its function?

When I've worked with Purson or Bune the experience I've had with them is one where they seem very up to date with the times. When I've worked with elemental spirits, that hasn't been the case from a human centric perspective, but the kind of information they provide me from an elemental perspective about technology and the environment suggests they have evolved as a result of changes brought about by people.

I think spirits can evolve, but that their evolution is defined by their function, and the domain that function operates in. I say that with a caveat, because I'm applying my own human centric perspective to this question, but based on my experiences I don't think of spirits as static or out of touch with the changing times and just might be a question of what's really relevant.