Controversy is a state of prolonged public dispute or debate, usually concerning a matter of opinion. The word was coined from the Latin controversia, as a composite of controversus – "turned in an opposite direction," from contra – "against" – and vertere – to turn, or versus (see verse), hence, "to turn against."
Perennial areas of controversy include history, religion, philosophy and politics. Other minor areas of controversy may include economics, science, finances, and race. Controversy in matters of theology has traditionally been particularly heated, giving rise to the phrase odium theologicum. Controversial issues are held as potentially divisive in a given society, because they can lead to tension and ill will.
Benford's law of controversy
Benford's law of controversy, as expressed by science-fiction author Gregory Benford in 1980, states: "Passion is inversely proportional to the amount of real (true) information available". In other words, the fewer facts are known to and agreed on by the participants, the more controversy there is, and the more is known the less controversy there is. Thus, for example, controversies in physics are limited to areas where experiments cannot be carried out yet, whereas Benford's Law implies that controversy is inherent to politics, where communities must frequently decide on courses of action based on insufficient information.