Predictions from 109 years ago.
"The American will be taller by from one to two inches. His increase of stature will result from better health, due to vast reforms in medicine, sanitation, food and athletics. He will live fifty years instead of thirty-five as at present – for he will reside in the suburbs. The city house will practically be no more."
35 years was the average lifespan in 1900?! What a change in a century! (I think it's now about 80.)