This is a really awesome tool.  I took both sliders left until there was one dot.  I then slowly slid the right slider which made an animation of battles fought.  It really wakes you up to just how much fighting our world has seen.  The amount of issues from 1900 till 2016 is so much more than I ever realized.<p>Edit - after reading another comment I realized some of these might not be much of a battle.