One of my favorite examples of SF writers underestimating the pace of certain changes is a scene early in Isaac Asimov's Second Foundation -- which is set 1000s

One of my favorite examples of SF writers underestimating the pace of certain changes is a scene early in Isaac Asimov's Second Foundation -- which is set 1000s of years in our future -- showing the life of a teenage girl before she starts adventuring. Sitting in the bedroom of her suburban house, she uses the new technology of a voice-activated typewriter to write a paper for history class. Looking over this homework assignment, her father reprimands her for one of her writing choices, and she sullenly revises the paper accordingly. (The choice, as you will likely recall if you read the Foundation Trilogy, was to brag about her grandmother, the heroine of the previous book.)