Do you reproduce enough to replace yourself? Does your behavior cultivate the success of your offspring? If the answer is no, then nothing else about you matters. Not your intelligence. Not your lifestyle. Not your comfort, morality, sophistication, or self-image. Evolution has one question, and it asks it without emotion: Do you persist across generations or not? This is the selection pressure modern societies pretend does not exist. We treat fertility as a lifestyle choice. Often an unimportant one. Nature treats it as the scoreboard. It is the only thing that matters.