mores, values, cultural traits and economic practices are social creations and not the result of an immutable natural law. The object of their critique is thus not human avarice or human consciousness, but the material conditions and man-made social systems (i.e. the economic structure of society) that gives rise to observed social problems and inefficiencies. Bertrand Russell, often considered to be the father of analytic philosophy, identified as a socialist. Russell opposed the class struggle aspects of Marxism, viewing socialism solely as an adjustment of economic relations to accommodate modern machine production to benefit all of humanity through the progressive reduction of necessary work time. Socialists view creativity as an essential aspect of human nature and define freedom as a state of being where individuals are able to express their creativity unhindered by constraints of both material scarcity and coercive social institutions. The socialist concept of individuality is intertwined with the concept of individual creative expression. Karl Marx believed that expansion of the productive forces and technology was the basis for the expansion of human freedom and that socialism, being a system that is consistent with modern developments in technology, would enable the flourishing of "free individualities" through the progressive reduction of necessary labour time. The reduction of necessary labour time to a minimum would grant individuals the opportunity to pursue the development of their true individuality and creativity. Criticism of capitalism Socialists argue that the accumulation of capital generates waste through externalities that require costly corrective regulatory measures. They also point out that this process generates wasteful industries and practices that exist only to generate sufficient demand for products such as high-pressure advertisement to be sold at a profit, thereby creating rather than satisfying economic demand. Socialists argue that capitalism consists of irrational activity, such as the purchasing of commodities only to sell at a later time when their price appreciates, rather than for consumption, even if the commodity cannot be sold at a profit to individuals in need and therefore a crucial criticism often made by socialists is that "making money", or accumulation of capital, does not correspond to the satisfaction of demand (the production of use-values). The fundamental criterion for economic activity in capitalism is the accumulation of capital for reinvestment in production, but this spurs the development of new, non-productive industries that do not produce use-value and only exist to keep the accumulation process afloat (otherwise