We will be going back farther than most realize. A person receiving a phone call in 1950, a telegram in 1850, a book in 1750, or a clay tablet in 8650 BCE all had confidence it was the thoughts and words of another flesh and blood human being. "Going back" does not mean pre-internet days, it means pre-distant communication days.
Let’s go back further. You can’t just limit your own personal engagements to non-electronic ones. You also need your entire network of connections to not be tainted.