I can draw a grid, and my eyes will automatically focus on the intersections. Just like with personalities, my mind automatically focuses on facts. But those points on a grid all have common lines! That's who we are. I saw your lines before, but I've long since lost touch with them. And I may have shown you mine once, but I don't expect you to see them all anymore. Just like on a paper-bound grid, the darker lines will always be more visible.