During my live chat last weekend, I got some great questions. One of those was "Where is the center of the Universe?" This is a question I get a lot when I give public talks, and it's a tough one to answer. I give it a go here. I'll be doing another live chat this weekend (probably Sunday at 3:00 Mountain time again); check the blog here because I'll post when I figure it out. I may change streaming sites; UStream clearly doesn't like my set up. The video is choppy again.