This was a fantastic article. I often feel dumb when reading bitcoin opTech or the stacker news repo then articles like this bring into focus how common people struggle with basic thought and reasoning. 

BlokchainB

>But the results for the developing world are already veering into catastrophic territory: Only 18% of Mexicans, 13% of Brazilians, and 8% of Indonesians are still coping.

This data doesn't add up, guessing at random would achieve the correct answer 25% of the time.

kruw

I found myself wonder about what they meant by "o-ring economy": https://en.wikipedia.org/wiki/O-ring_theory_of_economic_development

Then also what he meant by "foolproof sector": https://mason.gmu.edu/~gjonesb/O%20Ring%20Foolproof.pdf