“At a very basic level, there is a particularly powerful reason to expect one’s own personality to be particularly difficult to see: It is always there. Kolar, Funder, and Colvin (1996) dubbed this the ‘‘fish and water effect,’’ after the cliché that fish do not know that they are wet because they are always surrounded by water. In a similar fashion, the same personality traits that are most obvious to others might become nearly invisible to ourselves, except under the most unusual circumstances.”