Continuity!

[tymora]

Nice points, but hard for developers to read when they are busy. Point form?

1. Dynamic World - World state reflects player actions
Problem: How to sync the state between all players, especially when everyone goes through the same quests?

2. Living World - NPCs have their own lives
Problem: How to sync the state of each NPC between all players? Does it need to be sync-ed? How do you go about scripting the lives of so many NPCs?

3. Realistic World - Not everything needs to be beautified (e.g. slums)
Problem: Who is the target audience? What is the target ambience? Fairy tale? Dark fantasy?

4. Interactive World - Player can make physical changes to the world
Problem: How to sync the state of the world between players? Or is there a need to?

I personally think many of the sync-ing issues can be bypassed or alleviated by just implementing it client-side only.