N766UA, you're a
GA pilot. That is something I would like to know: What keeps
GA aircraft like these two apart - other than luck that's not supposed to run out? Is it just scanning the horizon and hoping that you don't get ambushed by another plane sooner or later? How effective is that?
It must be hard to see tiny dots on the horizon, especially if they are in the sun, off to the side, in the distant clouds, behind you, whether they are climbing, descending, what altitude they are at, or if you can even tell at all which direction they are going. I don't know why mid-airs don't happen everyday among these little planes, especially considering that air routes would tend to group them together along certain paths.