Imagine all the poor transhumanists who were born in the 19th century. They would have been fantasizing about all the rapid transformations in their society, and blithely extrapolating forward. Why, in a few years, we’ll all have steam boilers surgically implanted in our bellies, and our diet will include a daily lump of coal! Canals will be dug everywhere, and you’ll be able to commute to work in your very own personal battleship! There will be ubiquitous telegraphy, and we’ll have tin hats that you can plug into cords hanging from the ceiling in your local coffeeshop, and get Morse code tapped directly onto your skull!
Alas, they didn’t have a Ray Kurzweil or Aubrey deGray to con them with absurd exaggerations.