That's not what I'm saying. I think it should take the shape of the US. I think that each person makes a dot on a map on Bungie's server. Then from each of those dots a vector is calculated representing direction and magnitude to every other dot. If only two people are on one in SF and one in Seattle you would see three dots. A single dot in the center one at the 12 o'clock position and one at the 6 o'clock position with the same length (the length would likely not be very large) because from each person to themselves the length is 0 but from SF to Seattle it's almost a straight north shot but in reference to the length of the world it isn't very far. So if someone in Greenland visited during a time at which someone in every major city in the US was active you would see (roughly) the shape of the US at 2 o'clock position and an upside down version of the US at the 8 o'clock position. If someone in Russia or Alaska did it you would see the US at 11 o'clock and 5 o'clock.