There's a mechanism in your brain that lets you count without counting. It's called the approximate number system, and it's what lets you know that one line at the grocery store is longer than the other, or that your dining companion's plate has more fries on it than yours.
Math
The Approximate Number System is How You Count Without Counting
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So Easy A Baby Can Do It
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Watch And Learn: Our Favorite Videos About Counting
What Is The Approximate Number System?
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Key Facts In This Video

One thousands seconds is about 17 minutes, and one million seconds is more than 11 days. 00:53

The word "logarithmic" comes from "arithmos" meaning number, and "logos" meaning ratio. 02:15

Logarithmic thinking and feeling may explain why life may seem to speed up as we get older. 03:50
Counting, Explained
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Comprehending Numbers
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