Comment by l____

Hey, thanks for the comment. I am aware that "correlation is not causation" and did not stated otherwise. The correlations would not answer the original question about the causation and it seems like this analysis cannot cope with it. Swift example suggests that causes of popularity of a given technology could be found outside Stack Overflow. It is, however, not impossible for Stack Overflow itself to be one of the causes of popularity of posts on Hacker News.