I first parsed it as "21 years-old builds" and was wondering what kind of builds Chrome had 21 years ago. Then I did some math and realized Chrome is just 14 y

I first parsed it as "21 years-old builds" and was wondering what kind of builds Chrome had 21 years ago. Then I did some math and realized Chrome is just 14 years old. And 21 years ago, Firefox was called Mozilla, and IE6 was just released.