How you map numbers in your mind isn't universal, even among people who read in the same language

Imagine taking out a 12-inch ruler and finding that the number 12 is on the left side and the number 1 is on the right side.
The Atlantic

The Number Five Is Nothing Like the Number Four

More than 150 years ago, the economist and philosopher William Stanley Jevons discovered something curious about the number four. While musing about how the mind conceives of numbers, he tossed a ...