Edited sentence: According to some, the transition to the information society involves abandoning some parts of capitalism, as the "capital" required to produce and process information becomes available to the masses and difficult to control, and is closely related to the controversial issues of intellectual property.By the early 21st century, capitalism has become a widely noticed economic system worldwide, with the collapse of the Soviet bloc in the early 1990s weakening the communist movement considerably.Capitalism in the twentieth century changed substantially from its 19th century origins, but remained in place and by the end of the century was established as the world's most prevalent economic model, after the collapse of the USSR.Financial crisis of 2007–2009.In the years after World War II, capitalism was moderated and regulated in several ways.Keynesian economics became a widely accepted method of government regulation; meanwhile, countries such as the United Kingdom experimented with mixed economies in which the state owned and operated certain major industries.One response to this crisis was a turn to fascism, an ideology which advocated state-influenced capitalism; another response was rejection of capitalism altogether in favor of communist or socialist ideologies.Other aspects of twentieth century capitalism include the rise of financial markets, quantitative analysis of market trends, and the increasing globalization of production and consumption.Several major challenges to capitalism appeared in the early part of the twentieth century.Some even speculate that the development of mature nanotechnology, particularly of universal assemblers, may make capitalism obsolete, with capital ceasing to be an important factor in the economic life of humanity.The Russian revolution in 1917 established the first communist state in the world; a decade later, the Great Depression triggered increasing criticism of the existing capitalist system.The United States in particular has continued to push for the global adoption of capitalism, although not as aggressively as was done during the Cold War