Like all technology in the late-twentieth, early twenty-first century, automobiles are not exempt from the fast-paced evolution; the telegram system has been replaced with the cellphone. The evening news on the television has been replaced with instantly-updated news on the internet. The horse and carriage have been replaced with the self-driving automobile. This is one person's forty-year experience in that transition. The fellow mechanics will get a good laugh knowing you are not alone. The everyday automobile driver should read this to possibly get a better insight to what goes on in today's vehicle and the poor individual trying to repair it.
