I have OSD. It might be a little like OCD, obsessive compulsive disorder. What I have has not yet been identified by the medical community as a real disorder. It's what I call Obsessive Symmetry Disorder. I'm not trying to minimize OCD. That is real and a problem for some people. But I am obsessed with symmetry, and not just in my photos. I find myself positioning to get a view of the symmetry I see almost everywhere. I get satisfaction when I find symmetry which I am always looking for. So if you are that rare person who sees my photos and you are wondering why so much symmetry, now you know. It's just my OSD. Don't worry. I'll be okay.