"Nous avons tendance à surestimer combien nous comprenons le monde et à sous-estimer le rôle du hasard dans les événements"

Simplified Meaning:

People often think they know more about how things work than they really do. For example, you might believe you fully understand how your favorite sports team wins games. You might think it’s all about strategy and skill. However, lots of random factors, like a sudden change in weather or a surprising move by the other team, can change the outcome in ways people can't predict or control. This also applies to bigger events like a company’s success or failure. A businessperson might attribute their success to personal effort and smart decisions, but luck—such as being in the right place at the right time—often plays a big part. Recognizing this can help you be more humble and acknowledge that luck and random events affect everyone’s life. It can also encourage you to prepare for uncertainties rather than assuming everything will go exactly as planned.