> The building we exited was another one of the terrafoam projects. Terrafoam was a super-low-cost building material, and all of the welfare dorms were made out of it. They took a clay-like mud, aerated it into a thick foam, formed it into large panels and fired it like a brick with a mobile furnace. It was cheap and it allowed them to erect large buildings quickly. The robots had put up the building next to ours in a week.

> The government had finally figured out that giving choices to people on welfare was not such a great idea, and it was also expensive. Instead of giving people a welfare check, they started putting welfare recipients directly into government housing and serving them meals in a cafeteria. If the government could drive the cost of that housing and food down, it minimized the amount of money they had to spend per welfare recipient.

> As the robots took over in the workplace, the number of welfare recipients grew rapidly. Manna replaced tens of millions of minimum wage workers with robots, and terrafoam housing became the warehouse of choice for them. Terrafoam buildings were not pretty, but they were incredibly inexpensive to build and were designed for maximum occupancy

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