Were this an academic symposium on lung cancer I would agree. But this is the internet where folks who know how to establish causality and understand research methods and proper citing are uncommon. As a utility monster my appreciation reading about the author's grandma who lived 'til 90 smoking a pack a day more than negates your obsession with medical data.

The irony of this being every discussion of education on HN.

Must consume more utility, rawr.