That said, I have worked with data, so I enjoy seeing a statement made in a graphical format.
This has long been my favorite example of the perfection of graphically displayed data in explaining something (in this case, it graphically displays the disaster of Napoleon's march to Moscow.
So, I do enjoy the mathematical and graphical approach as well.
Completely off topic but I must comment on your excellent Napoleon graph. I note that the largest reduction in numbers takes place prior to the battle of Borodin (Mojaisk on the map). Although some may have been due to losses mainly to ill health, I guess most were left behind to secure the communication roads to France. So in the end it is not 400 000+ that reach Moscow but only 100 000. Those 100 000 + another 20 000 are lost due to cold and enemy action, but what about the remaining 250 000 - 300 000? Were they able to evacuate? Or did they also succumb to the Russian winter?