Hmm... someone said something about the day people stop driving cars, car companies will stop functioning. I recognize that it was sarcasm (and good sarcasm at that, I "lol'ed, out loud" to quote a friend of mine... anyway...)
I think that the smart car companies will simply stop functioning as car companies. According to their Wikipedia article, Studebaker is still around as a loan provider.... thought someone might be interested to know that...
I can't imagine what a total mindf*ck copyright law will be if we ever manage time travel.
In fact, I have no clue how that'd work, but I'm sure the RIAA (or its demon offspring, if this is the future we're talking about) would find a way to screw everyone over with it.
After all, how "dead" is someone if you can go back in time and visit them? Well, still pretty dead from a "here and now" perspective but I'm sure you can see how weird that could get with a few BS arguments from lobbyists and such.
Kind of a dumb comment, admittedly, but a fun idea to play with when you think about it for a little while.