Expanding racks | Henry Segerman

From Tom Scott's Newsletter:

I've no idea how I missed Henry Segerman until now. This is the antithesis of clickbait: a simple title, "expanding racks", hides a wealth of surprising visuals and explanations. There were multiple times, watching this video, where I said "oh!" out loud. Give it at least fifteen seconds. And full marks for including some project files in the description, too!