Mind the Gap - Gapminder Query

Another year of teaching has started with another run of the latest iteration of our Factfulness scheme of work. We have the book on Audible to play certain sections where Hans outlines the ideas and misconceptions and takes the students through why they perform so badly compared to chimpanzees... which is picked up in Ola's video about the terrible results. Bananas are required for this lesson.

It always makes a great way to start the year.

One of the diagrams that we use is also taken from the book and is shown here.

I pulled it out today to start thinking about the next few lessons and started thinking about the bottom diagram.

Where should the eighth person go?

And are the income level boundaries still the same, or should they have shifted upwards given the increasing cost of services and commodities since the original book was written and published? $32 a day doesn't buy what it used to.

Would be interested in any thoughts on this, and I can then discuss this with students.