A mathematical reason why Australian bank notes are the best

YouTuber standupmaths posted this video below about why he thinks Australian banknotes are some of the best in the world. And it has nothing to do with its design (some love them, some hate them) but more about how they increase in value and in size based roughly on a mathematical log scale.

He includes a comparison with British Pounds as well and notes that the UK Pound not only increases in length as the value goes up, but it also increases in width as well. Some people don't like this because it means the notes don't fit nicely in a stack, but if you consider the pure usability and accessibility of bills with these features (especially for people with disabilities), it's quite a good thing.

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