More recursion after last week’s recursive map post
Last week I posted The most amazing "You Are Here" map you've ever seen, which featured a map that referred to itself. In the closing paragraph I referred to a book---Godel, Escher, Bach---on recursion. I'd read and reread the book in the 1980s and it stuck with me. Not sure if anything would come of it, I wrote the author, Douglas Hofstadter, with a link. Beyond writing back that he appreciated the reference to self-reference, he noted the pattern in sending him a reference to him. Beyond that note, he included a diagram of the email noting the location of a red star in the email where the red star was. I hope he doesn't mind my quoting his email to me, in which I…
