[crux_]

I disagree.

Your belief that "new jobs take their place" will only remains true so long as increases in demand can keep pace with productivity: Sure, there's more demand out there in the developing world, but demand is finite in a way that productivity increases are not.

If we're not turning that particular corner today, we will someday; and from that point forth, there will be an inexorable decline in employment.

What happens then?