Thanks, the article puts into perspective the Bret Victor's point about William Playfair, who invented many of the data diagrams we use today, including the line graph. It was strange to see something as basic to how we think about data was invented only in late 18th century. But seeing the amount of work you put to design them properly clarifies the amount of creative thinking that was required to get something like this going on.

I'd also wish more graphs would come with this level of detail as this image from the article [0]. It would be so useful to see precisely where the data points are and how the line and interpolation are constructed.

[0] https://www.dougmacdowell.com/images/hand-drawn-data-outline...