I do agree that everything is just speculation. No way to know anything for sure with such a large active random grouping. But if you look at the shapes that form on the edges. They all appear to be about equal. And they roughly mirror the shape from the middle. So I do feel like the dots represent the distance to and from every single pair of people active at a given time. I do see the rotation appearing too and so I do believe it's possible that instead of an exact direction from those people there is some rotation with time - but it can't be fully the case otherwise you would get a circle near the middle and only two other circles that rotate the center. Regardless we just need to keep everyone active as long as possible as often as possible, but I think we should be trying to get at least small numbers of people from areas far away from the US to activate nodes every once in a while to move the mass of dots around somehow.