content: It definitely did keep going, just not in the direction that most expected. Most of our technology has moved to manipulating large amounts of data. The car that they were showing was a gas engine line follower with the ability to switch from one line to another. Now we have entirely electric cars that can actually detect what's in their surroundings using massive amounts of sensor data.   People predicted flying cars and robot assistants, but instead we got smartphones, the internet, and GPS navigation.