Yun" (禮運). Later, Datong and its ideal of 'The World Belongs to Everyone/The World is Held in Common' 'Tianxia weigong/天下爲公' 'influenced modern Chinese reformers and revolutionaries, such as Kang Youwei. Ketumati It is said, once Maitreya is reborn into the future kingdom of Ketumati, a utopian age will commence. The city is described in Buddhism as a domain filled with palaces made of gems and surrounded by Kalpavriksha trees producing goods. During its years, none of the inhabitants of Jambudvipa will need to take part in cultivation and hunger will no longer exist. Modern utopias In the 21st century, discussions around utopia for some authors include post-scarcity economics, late capitalism, and universal basic income; for example, the "human capitalism" utopia envisioned in Utopia for Realists (Rutger Bregman 2016) includes a universal basic income and a 15-hour workweek, along with open borders. Scandinavian nations, which as of 2019 ranked at the top of the World Happiness Report, are sometimes cited as modern utopias, although British author Michael Booth has called that a myth and wrote a 2014 book about the Nordic countries. Economics Particularly in the early 19th century, several utopian ideas arose, often in response to the belief that social disruption was created and caused by the development of commercialism and capitalism. These ideas are often grouped in a greater "utopian socialist" movement, due to their shared characteristics. A once common characteristic is an egalitarian distribution of goods, frequently with the total abolition of money. Citizens only do work which they enjoy and which is for the common good, leaving them with ample time for the cultivation of the arts and sciences. One classic example of such a utopia appears in Edward Bellamy's 1888 novel Looking Backward. William Morris depicts another socialist utopia in his 1890 novel News from Nowhere, written partially in response to the top-down (bureaucratic) nature of Bellamy's utopia, which Morris criticized. However, as the socialist movement developed, it moved away from utopianism; Marx in particular became a harsh critic of earlier socialism which he described as "utopian". (For more information, see the History of Socialism article.) In a materialist utopian society, the economy is perfect; there is no inflation and only perfect social and financial equality exists. Edward Gibbon Wakefield's utopian theorizing on systematic colonial settlement policy in the early-19th century also centred on economic considerations, but with a view to preserving class distinctions; Wakefield influenced