Once upon a time I was promised, or thought I had been promised, a certain position. The promise was not fulfilled, and I was miffed. During supper one evening with a friend I explained my miffedness. My friend rejoined that I had made the mistake of believing that someone meant what they had said. He pointed out more precisely that in life people do make promises on which they don't deliver.
There are so many topics of thinking in life where I struggle to reach a settled view. Amongst my dilemmas is what judgement to make on the law firm that did the salads for women offer on International Women's Day 2017 - see March Late Life Crisis. However, though what follows has not generated a Eureka moment, the Overton window may help as a thinking tool.