Perhaps this will amuse no one but me, but I am surprised by how many reviewers are unable to bring themselves to use the correct title of my book What We Can’t Not Know.  They cite it as What We Cannot Not Know.

What explains this funny scruple?  My guess is that they are haunted by the spirits of long-dead schoolteachers who drilled into them that contractions have no place in genteel prose.  That’s prob’ly what happened.