No Escape from Telephones: In 1953, a Telephone-Company Executive Predicts the Rise of Modern Smartphones and Video Calls. Given this predates a time in which regular telephones were scarce and not easily available, this is a pretty bold prediction. How right Mark R. Sullivan was.
We live in the age of the smartphone, which took more than a few of us by surprise. But in all human history, not a single piece of technology has actually come out of nowhere.