I’m all in favor of government spending on infrastructure, education, medical treatment, investment in human capital, all reasons that I am interested in MTT. One feature of all this spending, however, is that it expands buying power for the newly employed without expanding productive capacity to satisfy that demand. Possibly such investments, particularly infrastructure improvements can expand productive capacity, but certainly not quickly, and such projects also raise demand for materials, raising prices on those materials, and expand demand for labor, raising wages. The assumption is that producers will get the market signals and increase production to match new demand. There are real constraints on production though, environmental costs to increased energy production, competition between nations for commodities, particularly if emerging economies continue to develop. Attention needs to be paid to assumptions of the consumer economy, the most potentially dangerous of which is that eternal economic growth is either possible or good.