While researching my previous post about véjà du and Abraham Wald I came across “The Back of the Napkin Blog” (a.k.a. Digital Roam). This blog is devoted to visual thinking and representation. Very cool and very interesting… well worth a visit. Turns out that there is a posting here about Abraham Wald and his WWII insight. You can read it here: The hole story, What you don’t see will kill you. You can see the author’s page here.