Donald Knuth, for example, don't use email https://www-cs-faculty.stanford.edu/~knuth/email.html https://www-cs-faculty.stanford.edu/~knuth/email.html Not tell

Donald Knuth, for example, don't use email https://www-cs-faculty.stanford.edu/~knuth/email.html https://www-cs-faculty.stanford.edu/~knuth/email.html Not telling you should stop using it. Just to give a thought.