These cars are so difficult to drive that only mechanics, well off motor buffs, and other geeks will ever take the time to learn how. The flaw in these contrarian arguments is that the explosion is already underway, and nothing will stop it now. Technology will find a way, because now the demand exists for it. The cars will get easier and easier for ordinary people to drive. The road system will be improved.
Genuine interstates are on the way.
However, email was just the detonator for the explosion. Over the last two decades we have become more and more efficient at managing communication, with the touch-tone phone, voicemail, conference calls, facsimile machines, pagers, and cell phones. But in just its first two or three years the World Wide Web has done more to reduce the cost of communication and interactivity than all these technologies combined. Think about how the fully allocated cost of the most sophisticated calling center interaction with a customer compares to the virtually cost-free interaction with the same customer via the Internet. This has the potential to make it easier and easier for the customer, or the employee, or the supplier, to interact again and again.