text: When the option of smarter roads was crossed of the list, a new option came metioning smarter cars. "They needed a whole lot more sensors." That seemslike a great idea but what if a human drvies on to many bumps and a sensor breaks off? Who knows how much it cost to fix it or where you can even find another sensor to replace the one that broke. A sensor can miscalculate a turn or and turn another way and cause a crash only because one or more sensors miscalulated.