[zozbot234]

That's actually not what "false negative rate" means - what he's trying to say is that you can find more candidates which are just as good, because you're putting more effort into searching for them. But of course it's an easy thing to miss, especially if you're not familiar with that terminology - and with existing tech-hiring practices that accept a higher false-negative rate to begin with. Damore never expected his memo to be spread as widely as it was, and this ongoing confusion is part of how it became such a political hot potato.