Although the documents posted were printed from a computer printer, is it really that hard to believe that manual typing is just a bit more common in thirty years? After the war, many things like manual printing machines, bicycles, sailboats and hand tools were valued a great deal. I have noticed more people in California are installing wood burning stoves.
I realize my claims are a bit ridiculous but my intent is not really to be believed. However, if I had an opportunity to talk to a time traveler, I might ask questions like: How exactly does the singularity sensor measure the expansion of the inner event horizon or why does the reality of multiple worlds support the religious dogma that there are no good or bad people just good and bad desicions or what were the political motivations that changed the U.S. Constitution?