An OB marker, short for "out of bounds marker", is used in Singapore to denote what topics are permissible for public discussion. Discussion topics that go beyond the OB marker, are considered to be either societal, cultural or political taboos.
An OB marker, short for "out of bounds marker", is used in Singapore to denote what topics are permissible for public discussion. Discussion topics that go beyond the OB marker, are considered to be either societal, cultural or political taboos.
Source: Wikipedia "OB marker" · CC BY-SA 4.0
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