Particularly appropriate for the election's jarring reality checks, this is a popular study of scholarly research into how people make mistakes and then continue to hold on to them--confirmation bias, recovered memories, bad feedback loops, self-justification, grudges, blind spots, Reid technique false confessions, faulty memoirs (victors write the history, the defeated write their memoirs), revised history, magical thinking and other quirks of the human brain, all illustrated with vivid examples.