Ask HN: Douglas Hofstadter's 2^5 page letter to Robert Burninger

I just listened to [How AI pioneer Doug Hofstadter wrote Gödel, Escher, Bach ](https://youtu.be/JYZcHSqqxtg?si=AflMz1oqlz7IK4zf&t=375) and thought that Douglas Hofstadter's 1973 2^5 page letter to Robert Burninger would be a great addition to https://lettersofnote.com/.

Anyone know if it's available online?