The “Moving the Goalposts” Fallacy

Don’t you hate it when a friend agrees to a set of rules in a game and then complains about them? They try to claim they actually won by weaseling their way out of the contractually agreed-upon rules?

This is a logical fallacy in argument known as moving the goalposts. This fallacy is commonly considered a version of the special pleading fallacy. After a claim is shown to be false, an attempt at making a special exception is made. Continue reading