“Slate has noticed a wily hedging mechanism among Silicon Valley soothsayers to circumvent these uncertainties—make predictions for “five to 10 years out.” It hits that sweet spot: just close enough that people can begin to taste it, but just far enough away that (almost) no one is going to call you out if it doesn’t become true. A review of press releases and tech articles stretching back to the 1990s finds that these Goldilocks forecasts are abundant.”