My point is that there already is not enough work to do. We can fill the basic needs of humanity with well below full employment and this will only become more obvious in the future.
It would be great for society if we all reached the point where perhaps 5% of workers covered our basic human needs and the other 95% were paid to entertain and do academic/scientific research to further improve our standard of living.
That is my expectation for a bright future for humanity.
We have drought and flood resistant crops, we have assembly lines, we have heavy machinery, and yet the majority of the world's population lives without clean water and regular meals. There is a huge reservoir of work which needs to be done but because of the degenerate governments, is not getting done.
On the other end of the spectrum, wealthy countries are expanding the definition of what basic needs are. Just last month, Finland declared that broadband internet access is a right of every citizen [1]. All of a sudden you have, by government mandate, a new service which must be provided to every corner of the country.
So on the one hand you have all this latent potential and on the other hand you have ever growing demand for services. I just don't see the artificial jobs/services limit ever being an issue, even though we've long had the means to cloth and feed every man, woman and child on earth.
[1] http://www.cnn.com/2009/TECH/10/15/finland.internet.rights/i...