Comment concorde! (Score 1) 722
It's possible to fly from london to new york in three hours. In fact, you could do for a span of twenty years or so, before concorde was decomissioned. Just because it's possible, doesn't mean it'll become widely available, or even at all available. Ditto driverless cars. The technology will filter down into ordinary cars as extra safety features to augment the driver's slow reactions. For the foreseeable future, anyway.