> Why not just say, "I'll need to look into the impact of that change and I can get back to you". When you say that, do you then end the conversation about the

> Why not just say, "I'll need to look into the impact of that change and I can get back to you". When you say that, do you then end the conversation about the change. Or do you keep on taking about the specifics of the change. If you keep on talking, and the change turns out to be infeasible, then you just wasted a bunch of time. However, if you stop talking and the change turns out to be feasible, you just wasted time that you and the other person had set aside.