Author Megan McArdle is fond of saying, “the existence of a problem does not imply the existence of a solution.” (Is this an insight original to her? I don’t know. Here’s one cite for this, but she’s said this repeatedly.) I’d go a step further: that a given individual is particularly empathetic towards people who face a particular problem, or is indeed personally affected by that problem, does not mean that he or she is any more likely to know... Read more