lukestein’s Twitter Archive—№ 7,523

This economist’s epidemiology of the day is just to note that log scales let you put a time series and its derivative on the same graph (in which case the distance between the two lines shows you the 𝘱𝘦𝘳𝘤𝘦𝘯𝘵 𝘤𝘩𝘢𝘯𝘨𝘦) #lowerthederivative