Self-help authors and politicians seem to agree on at least one thing: mindset matters. The shelves of bookstores worldwide are awash with motivational books by evangelical writers hoping to convert readers to their gospel of optimism. The central thesis is simple: success depends on approaching life, especially its challenges, with a positive outlook.
Politicians and leaders have always appreciated the power of mindset, though less of the positive kind, as attested to by a history of propaganda that dates back to at least 500 BC. More recently, as Covid-19 spread across the globe, language in public discourse showed itself to...