[ It sounds like a low number, but when one considers how much can actually change within that time, especially for the situation at hand, it is considerably a while compared to what might be millenia in stasis. ]

You're not wrong about that. There have been quite a few stages of it after all. The changes, understanding the energy flow, and the threats from beyond, the consideration that what we do truly know of it all is highly limited, and some of that even might be said for the citizens here as well.