We construct a computational model and a corresponding visualization of color propagating by infection from neighbor to neighbor. expand github
http://ward.digex.fed.wiki/assets/pages/race-of-influence/view.html HEIGHT 400
Dots are born green or purple in equal proportion.
Dot placement tends toward the center.
Dots speak color to four closest neighbors.
Dots as likely to change color either way.
Purple dots speak half again more often.