No, that is the definition of bad communication.
I disagree with you on that. I think sometimes it might be bad communication but not always.

I've had friendly discussions with people, and have known by the end of a frank and complete discussion, that we will not agree on that particular topic. It might be due to personal experiences or political leanings, but whatever the reason we simply have a different mindset, and therefore opposing views on the subject in hand. So the discussion is ultimately circular not due to poor communication, but due to strong yet differing opinions.

I'm not saying the discussion isn't an interesting one, and it certainly opens people's eyes to new opinions, and information, but if the same people are in the discussion, it will end up back where it started.