Peak Non-Creepy Dating Pool

The percentage of people who are single declines with age. However, based on the “half-your-age-plus-seven” rule, the range of people you can date expands. Combine that with population counts and demographics, and you can find when your non-creepy dating pool peaks.

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Life expectancy changes

The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.

What Qualifies as Middle-Income in Each State

The meaning of “middle-income” changes a lot depending on where you live and your household size.

19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.

Counting Happiness and Where it Comes From

Researchers asked 10,000 participants to list ten things that recently made them happy. I counted and connected the dots.