Mark pointed out to me awhile ago that no one drives with their windows down anymore.
Now, I can't not notice it.
I think it finally occurred to me today why these people are all sealed up in their aerodynamic little transportation pods.
When your trying to carry on a phone conversation in your satellite navigated, XM radioed, TV screen hanging from the ceiling, electronic doo-dadded status symbol, you certainly don't want to be distracted by that pesky out of doors stuff.
I sure would hate for these people to miss something.