In January, I used data on GitHub’s past growth to predict what would happen over the next year in a post titled “GitHub will hit 5 million users within a year” and said:
In the near term, I’d estimate, based on my Bass model, that GitHub will hit 4 million users near August and 5 million near December.
![Prediction from my January 2013 post](http://dberkholz-media.redmonk.com/dberkholz/files/2013/12/growth-coalition-bass-10-years-out-composite1-1024x394.png)
On August 7, GitHub reached 4 million and today, it topped 5 million — exactly as I predicted. Given these almost uncannily good results (according to its own user-search API), I couldn’t help but be reminded of a classic XKCD comic:
![](http://imgs.xkcd.com/comics/science.jpg)
Caveat: Users appearing in search may also include GitHub organizations.
Disclosure: GitHub has been a client.
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