Have a look at this interesting video about predictions for the year 2200. The speaker uses some useful vocabulary (don't forget you can "view subtitles").
Vocabulary from the video (look the words up if you don't know them):
have beneficial economic effects
the speculative value of property
lift a heavy burden off the world's poor
scarce labour drives wages
we're in for another change
PS. You could look up 'Malthus' and 'The Enlightenment' on Wikipedia.