Successful capitalism requires decline as well as creation. All this carries cost, as real people sometimes are lost in all the stopping and starting, the ending and renewal. But it seems that very dynamism and freedom to change is what allows economics to grow.
Steel gives way to computer software, railroads take a back seat, and Internet commerce is born.
And so on. For instance, few would have, a couple of decades back, imagined the significant role legal gambling now plays in our economy. The industry likes to talk about gaming, not gambling, and Las Vegas bills itself as a fun destination for the whole family. Come on, bring the kids along. And for a lot of people all of it's true.