Google cars are going no more than 25 mph and are lightweight. Different thing all together.<p>Here is the big thing - the driverless truck has to operate in a uncontrolled environment that can result in human death. Who is the responsible party? The trucking company? The software developer?<p>Additionally we are talking situations where a computer can&#x27;t have any reaction interruptions for hours and hours. No reboots. No garbage collection pauses. No panics.<p>Can this be done? Maybe. But at what cost? It might be that the best role for the computer is helping a truck driver be safer -- not to replace the truck driver.