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When there is a race between two or more individuals, the person who comes in first is usually declared the winner. Suppose it is a 100-meter race, and there is a “photo-finish” result. In that case, various mechanisms, such as replay, are used to determine the winner. In the game of football, if there is a controversial call by an official, the head coach has the right to challenge the call. Again, instant replay is used from a variety of angles for the referee to get the call on the field right. When everything is done right by the rules, most, if not everybody, is happy with the results. It...