The world of 3-D printers has already begun. Nevertheless, this technology cannot revolutionize our society unless we can get things up to speed. For instance, if Toyota wants to sell 10.512 million car units annually, there's no way in earth's greenest places that they can own turtle printers that run at speeds of three weeks per car unit. This would take forever to accomplish the yearly quota of 10.512 million. In fact, in order to achieve the goal of 10.512 million units per year, this automaker will need state-of-the-art 3-D printers that can churn out whole entire workable cars at the pace of: 864,000 per month (30 days) or 892,800 per month (31 days); 28,800 per day; 7200 per six hours; 1200 per hour; 20 per minute; and 1 car unit every 3 seconds. Yeah, three seconds per car: This includes the whole nine yards such as workable headlights, valves, pistons, cylinders, suspension springs, windshield wipers, and every other part seen on or in a 2012 car model. Now, this might seem insane that anyone or any machine could make this possible. However, we must take in the fact that as we progress through time, newer technologies will spring up to meet demand.