As I'm sure any discussion involving economics would :) I've given it a good think and I find it hard to come up with something concrete. In our current econom

As I'm sure any discussion involving economics would :) I've given it a good think and I find it hard to come up with something concrete. In our current economy there is still the driving force of profit that creates jobs. All jobs that don't directly support the necessities of life, are either directly selling products to consumers or supporting companies directly selling products to consumers. There still has to be a mass of people to sell crap to for the economy to function. Under the assumption that all manual labor, factory and most service level jobs are gone, there is only a small market for non-essential products, which effectively puts a cap on the number of knowledge workers.