In this short 4 minute video, Hans visualizes change in world health using 120,000 data points over 200 years. He illuminates the importance of applied mathematics, statistics, and actual measurement (empirical knowledge). He uses life span and income as representative indicators of overall world change to explode myths.

"Without actual measurement, you don't know jack!" ~ MW
See also: Oil, Smoke & Mirrors | River of Myths | Florence Nightingale