I saw a collection of boxes and other strange objects and a maze of wires, cables, and hoses that made no sense at all. Computers, it seems, have changed the automobile engine from something I can understand and even fix, to a complicated mess that I can't possibly figure out by myself. There was simply nothing I could do to understand what might be wrong with the engine or even attempt to fix it. The diagnostic printout from their computer showed them what part to replace, which they did, and the car has worked fine ever since. I realize that modern automobile engines are a lot better because of their computer controls.
Pollution is much less that it used to be.
Engines today develop much more power and use less gasoline because their built-in computers constantly adjust for the most efficient operation. There's no question that things have improved. But there is a price to pay, and the cost of improving our technology is often a loss of our ability to deal with it on a personal level. Now for the happy ending. Just the other day my vintage tractor with no computers at all stopped running.