2023 Then the focus turned to Miller's insanity defense. Anthony Chin-quee, Men's Health, 21 Apr.

2023 There were actually two doors-one that led to the hallway and the insanity of the patient rooms beyond, and one that led to a bathroom that was shared with an adjoining call room. Mike Bianchi, Orlando Sentinel, 30 Apr. Recent Examples on the Web My eyes were opened to this insanity two decades ago.

The straight facts about insanity are these: it has been in use in English since the late 16th century, for the first two hundred years or so carrying only the literal meaning “the condition of being mentally deranged.” In the 19th century it began to take on a looser sense, “extreme folly or unreasonableness.” In modern usage, insanity may be found in both senses: you may tell your brother that trying to skateboard while holding onto a car is 'insanity' (in which case you mean that it is extremely foolish) or encounter the stricter original meaning in such contexts as insanity plea. An oft-quoted bon mot (frequently attributed to Albert Einstein, Benjamin Franklin, or a number of other people who probably never said it) is that insanity may be defined as “doing the same thing over and over and expecting different results.” While the job of lexicographers might be easier if they were allowed to use witty sayings instead of precise definitions, such belletristic labors are not within their purview.

Instanity not included cool new friends