I'm one of a couple domain experts on my team. I am well respected as such. The reason I "sit ... coffee.. think things through" is because I am doing a mental

I'm one of a couple domain experts on my team. I am well respected as such. The reason I "sit ... coffee.. think things through" is because I am doing a mental impact analysis. How are the suggestions going to affect the system as a whole. One simply cannot know these things off the top of their head in a meeting for a system of any meaningful size. It is precisely because of my experience that my team is OK with me taking an hour to ponder. Edit: Let me clarify one thing. I'm not talking about situations where, say, the PO comes and asks, "Hey, JustSomeNobody, why does the system do this under these conditions?" I know the answer to this. If they want logs for that specific instance, I can get them. What I'm talking about is, when the PO calls a meeting and says, "I just got off the phone with <Entity>, they want these changes to the system. What will it take?" I don't answer these questions, definitively, without thinking about them. That does NOBODY any good. I'll sometimes give a few initial thoughts for the sake of the meeting, but that's it.