I was looking through the latest issue(February 2008) of Scientific American today and they have in the Anti-Gravity column a list of predictions for the year 2000 made in the December 1900 Ladies Home Journal by one
John Elfreth Watkins,Jr.there's also a link to the full list of predictions.
For those interested the link is:
http://www.tinyurl.com/3yuaxx
Surprisingly some of them are almost accurate.Although I think the shape many Americans are in today most people could barely walk ten feet let allow the ten miles he predicts as average.