> Place a measuring cup in your backyard every time it rains and note the height of the water when it stops: Your data will conform to a bell curve. That strik

> Place a measuring cup in your backyard every time it rains and note the height of the water when it stops: Your data will conform to a bell curve. That strikes me as unlikely, actually: that the amount of water to fall (per area) across rain showers ("when it stops") is normally distributed. Why would the author think that? Also, not much of "the math that explains" the CLT in the article. The basic conditions are: The samples you add together must be - sufficiently independent - sufficiently well-behaved in the sense of not having huge outliers (finite variance is good enough for this) Not sure either condition holds for rainfall.