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Automation, which is both the most advanced sector of modern industry and the epitome of its practice, obliges the commodity system to resolve the following contradiction: the technological developments that objectively tend to eliminate work must at the same time preserve labor as a commodity, because labor is the only creator of commodities. The only way to prevent automation (or any other less extreme method of increasing labor productivity) from reducing society's total necessary labor time is to create new jobs. To this end the reserve army of the unemployed is enlisted into the tertiary or "service" sector, reinforcing the troops responsible for distributing and glorifying the latest commodities at a time when increasingly extensive campaigns are necessary to convince people to buy increasingly unnecessary commodities.