We were promised
jetpacks seahorse riding. At least according to these illustrations of the 21st century done by artists at the turn of the 20th century.
France in the Year 2000 (XXI century) – a series of futuristic pictures by Jean-Marc Côté and other artists issued in France in 1899, 1900, 1901 and 1910. Originally in the form of paper cards enclosed in cigarette/cigar boxes and, later, as postcards, the images depicted the world as it was imagined to be like in the year 2000. There are at least 87 cards known that were authored by various French artists, the first series being produced for the 1900 World Exhibition in Paris.
You can see them all here.
It’s always interesting to look back and see how people saw the future. Curiously as well, is how close some of the concepts are. Granted, their visions were limited by the technology which existed at their present time. For example, we can extrapolate from the classroom illustration as being pretty accurate in the sense that information in books being fed electronically to students.
What woman today would wear a dress underwater to play croquet?