What occurs as we gain more prosperity and things that used to be jobs no longer become jobs is that the labor transfers over to things that nobody thought could be jobs. Think of personal shoppers. Did they exist even 20 years ago in any significant capacity? And although "make money on the internet" has always been very elusive for many since the advent of the internet, it is still the case that more people are making money doing things like blogging. Could GoNintendo's RawMeatCowboy have made a living like that twenty years ago?
The problem, of course, is that it doesn't go 1:1 for old job opportunities lost versus new opportunities created, because lost jobs necessarily depresses the economy and slows the ability for new jobs to appear.
Monster Hunter: pissing me off since 2010.
