Librarys and sages

[Saxon]

Interesting. I have yet to receive the full game, so perhaps I have misunderstood something. I thought the general trend was that magic was stronger in the earlier era and less powerful in the later eras. But by making magic harder to research over all, it makes all periods have less. Am I on track or am I missing something?

Thematically, I could see the idea of fewer libraries in the early era than in the later eras, but that would go against the idea of less magic later.