A few hours after the Euro 2020 opener, an assortment of articles had appeared all over the world suggesting that Ronaldo’s distaste for unhealthy Coca-Cola products had wiped out US$4 billion of the brand’s value. Yet so much of this conjecture was built on a shaky, if not false, premise. In fact, Coca-Cola’s market value was already down US$4 billion by the time of Ronaldo’s snub. Instead, the incident reveals the importance of critical thinking for business leaders, and the reading public, especially…