Hans Rosling uses augmented-reality animation to show 200 countries over 200 years in four minutes, built from 120,000 data points. It tracks life expectancy and income to show the world's development.

Why Hacker News readers recommend it: HN commenters send it as a short antidote to cynicism, showing long-term global progress and the shrinking gap between rich and poor countries.

“Spend five minutes and watch this. Amazing presentation my Hans Rausling”

View the original HN discussion

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