from The Technium
One of the reasons it is hard to predict what the future looks like is because much of the future is movable. The thing we are trying to forecast is changed by our attempts to make it real. Many hundreds of years ago, when creative people imagined flying machines, they imagined machines that had wings that flapped. What they imagined did not happen; the deliverable moved to an airplane with fixed wings. In the 1950s we imagined wrist-watch radios on every person in the future, and that did not happen (yet), but instead, the future moved to “radios” in the pocket of every person. Now we feel we don’t want wrist-watch radios. The future moved.