I'm not sure how a source from 2002 proves false a citation of a source from 2007. Edit: Look, whoever keeps downvoting this, would you PLEASE read the sources

I'm not sure how a source from 2002 proves false a citation of a source from 2007. Edit: Look, whoever keeps downvoting this, would you PLEASE read the sources? Is that too much to ask? See my other comment below, explaining how the article arrived at its number, and why it doesn't sound right. It's really disappointing to see HN devolve into such sloppy thinking.