Many software vendors have deliberately blurred the lines between "on your computer" and "on the internet". When you save something in Application A, is it really being saved on your computer, or is it in the cloud? It used to be obvious, but now you kind of don't know until you do some digging in your filesystem. And, now we actually run some apps from the web!

The phrase "the user doesn't have to know if this is on his computer or the cloud" has done a lot of harm to the software ecosystem.