his book Collapse, Albert Bartlett and Garrett Hardin describe Simon as being too optimistic and some of his assumptions being not in line with natural limitations. Diamond claims that a continued stable growth rate of earth's population would result in extreme over-population long before the suggested time limit. Regarding the attributed population predictions Simon did not specify that he was assuming a fixed growth rate as Diamond, Bartlett and Hardin have done. Simon argued that people do not become poorer as the population expands; increasing numbers produce what they needed to support themselves, and have and will prosper while food prices sink. Diamond believes, and finds absurd, Simon implies it would be possible to produce metals, e.g. copper, from other elements. For Simon, human resource needs are comparably small compared to the wealth of nature. He therefore argued physical limitations play a minor role and shortages of raw materials tend to be local and temporary. The main scarcity pointed out by Simon is the amount of human brain power (i.e. "The Ultimate Resource") which allows for the perpetuation of human activities for practically unlimited time. For example, before copper ore became scarce and prices soared due to global increasing demand for copper wires and cablings, the global data and telecommunication networks have switched to glass fiber backbone networks. This and other quotations in Wired are supposed to be the reason for Bjørn Lomborg's The Skeptical Environmentalist. Lomborg has stated that he began his research as an attempt to counter what he saw as Simons' anti-ecological arguments but changed his mind after starting to analyze the data. Herman Daly, an American ecological and Georgist economist, criticized Simon for committing profound mistakes and exaggerations, for denial of resource finitude and for his views that neither ecology nor entropy exists. Finiteness of natural resources Simon criticized the notion that natural resources are finite: 'Incredible as it may seem at first, the term "finite" is not only inappropriate but is downright misleading when applied to natural resources, both from the practical and philosophical points of view. As with many important arguments, the finiteness issue is "just semantic." Yes the semantics of resources scarcity muddle public discussion and bring about wrongheaded policy decisions. [...] The quantity of the services we obtain from copper that will ever be available to use should not be considered finite because there is no method (even in principle) of making