A Challenge for the fellow atheists. 10 points for best answer?

I'm not sure I understand the question. It seems unnecessarily suppositional. Why would the Universe be objective? In fact, why would it even exist? I'm only aware of my own existence. Thus, if the Universe exists, it has to be a part of me, not of anything external. And if it's a part of me, it has to be a subject to subjectivity (heh) be default.