Byzantine empire, like a lot of empires had many reasons for collapse, a lot of them just came from the usual sticks of being an old empire.
As for how one could prevent that: I don't really see many ways you could really prevent a collapse and have it last into the modern day, well, not unless you manage to make a lot of things in a lot of places go just right.
Reminds me of this one rambling a professor of mine was having about how an empire that doesn't expand, starts to decline.
As for how one could prevent that: I don't really see many ways you could really prevent a collapse and have it last into the modern day, well, not unless you manage to make a lot of things in a lot of places go just right.
Reminds me of this one rambling a professor of mine was having about how an empire that doesn't expand, starts to decline.