I had a lot of fun putting together today’s comic. Anyone who likes strange charts like this should check out Edward Tufte’s The Visual Display of Quantitative Information. It’s long been one of my favorite books. Thank you to my friend Tina for color advice, and to my brother Ricky for some Lord of the Rings detail corrections.
Also thank you to Olga and Noam for the lovely animated version of comic #442.
xkcd 
Sex and gender are often confused – thanks for the explanation
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