It’s simple: - get a sample the size of HN’s readership, - apply the odds of each person having a license, - bias slightly because of the audience’s demograp

It’s simple: - get a sample the size of HN’s readership, - apply the odds of each person having a license, - bias slightly because of the audience’s demographics (which skews wealthy and technical), - then consider that pilots are more attracted to aircraft-related stories, and suddenly it’s not surprising to have dozens of qualified people in a thread like this.