At first, I thought that the number 9 in the title was arbritrary. I was just wondering why the author didn't choose a round number, such as 8 or 16. Or a link-

At first, I thought that the number 9 in the title was arbritrary. I was just wondering why the author didn't choose a round number, such as 8 or 16. Or a link-baiting number, such as 3, 7 or 10. I was surprised when I found out that the number 9 has an actual meaning in the article: > ... but why pick 9 as the upper limit? Simple: every modern browser supports using Ctrl-1 to go to the first open tab, Ctrl-2 to the second, and so on ... (Control-9 always jumps to the last tab, however many you have open, by the way.)