Arithmetic Mean vs. Geometric Mean

> It is beacause human heights do not vary too much. No adult is 2x taller than another adult. (I just checked: tallest adult alive is less than 2x of shortest adult alive).

Sultan Kosen is 8ft 3in tall, while Jyoti Amge stands at 2ft 1in. https://i.imgur.com/YhL3bcn.jpg