So Prof Knuth doesn't use email. Big deal. This has been known for many years and doesn't really count as news. I still have his books, dusty from years of being unused because google has made them largely unnecessary. Last time I looked at one was when I needed to do precise division of numbers represented in base 100.
Oh, Hacker News is for news?
Anyone have any idea what the comment about "France, Germany, and the Netherlands" in the end alluded to?
Traditionally, émail or email(le) means
enamel in those languages.