I come across this expression in this public lecture "Analogy as the Core of Cognition" by Douglas Hofstadter. (http://shc.stanford.edu/events/calendar/2006-2-6-douglas-hofstadter-analogy-as-the-core-of-cognition.html). Roughly 15-20min into the video.
When Doug made this humorous remark, laughters erupted in the room. I do not quite get the joke though. Could anyone explain the significance of Delaware here?
The video in the link above is gone. The video of the talk is now available on youtube. The phrase 'Analogy is the Delaware of Cognition' is used shortly after this point of presentation It is the actual beginning of Douglas Hofstadter's talk. Prior to this point it is all introduction and chat.