He updated his web site quite recently though: https://www-cs-faculty.stanford.edu/~knuth/news.html https://www-cs-faculty.stanford.edu/~knuth/news.html "2018

He updated his web site quite recently though: https://www-cs-faculty.stanford.edu/~knuth/news.html https://www-cs-faculty.stanford.edu/~knuth/news.html "2018 began for me with an absolutely incredible 80th birthday celebration called Knuth80, held in the delightful city of Piteå in northern Sweden. ..." So maybe he's just using that email-via-printouts thing as a ruse to avoid having to answer to emails from "important people" expediently? I would totally pull that move if I could.