It&#x27;s actually a reference to a disclaimer in Algorithm Design Manual. I don&#x27;t think he actually reviewed the lecture notes.<p>The Algorithm Design Manual had the following(page ix in second edition) &quot;Any errors, deficiencies, or problems in this book are somebody else’s fault, but I would appreciate knowing about them so as to determine who is to blame.&quot;<p>Hence the joke.<p>Source: Steve told me.