Predictive or Adaptive?

WSJ article makes light of inaccurate predictions, something which project managers need to get comfortable with (think project and portfolio estimates and forecasts). However, the prediction below seems to have come true, if you are a frequent visitor of college campuses. ...

... "In 1929, a New York City haberdasher, John David, predicted that the well-dressed man of 2020 will wear shorts for every occasion except formal events. " ...

Via Wall Street Journal: Deja Vu