He also mentioned that the cars are pretty much impossible to work on on your own since you need to have the right diagnostic equipment, as opposed to a car one might have bought 15-20 years ago, where a good manual was all that you needed to get into the thick of it.
While I agree that knowledge of the inner functioning should not be required for using a product, I think that it would be nice if there was some sort of effort made to allow one to poke inside. I am guessing that with Chrome there will be some sort of setting that you can use to undo this change (I use Firefox, and rarely, but occasionally, use the about:config tool).
This concept is something I've been playing out in my mind and that I'm starting to explore in my programming. A simple interface that "doesn't make me think" (me being the user), and a well-tucked-away "Advanced" button that, having given the proper warnings, allows the user to poke around on the inside.