The open society is a concept originally suggested in 1932 by the French philosopher Henri Bergson, and developed during the Second World War by Austrian-born British philosopher Karl Popper.
Popper saw the open society as standing on a historical continuum reaching from the organic, tribal or closed society, through the open society marked by a critical attitude to tradition, up to the abstract or depersonalised society lacking all face-to-face transactions.
In open societies, the government is purported to be responsive and tolerant, and political mechanisms are said to be transparent and flexible. Advocates claim that it is opposed to closed society (authoritarianism).
Because Utopia is not an open society, I am against creating Utopia, but one can think about Utopia and generate more practical ideas.