New post: The Talk I Gave on September 12 More 25th anniversary thoughts and recollections. I was heading off to Durham, in the north of England — my first big talk now that I had started my permanent academic job. I arrived toward the end of the first day of the conference: September 11, 2001. https://andrewjaffe.net/blog/2026/09/the-talk-i-gave-on-september-12/