Free speech and the marketplace of ideas are fundamental to modern society. These concepts have been present in Western philosophy since the Enlightenment, and the American Revolution and subsequent founding of the United States promoted their value. The American experiment has demonstrated that these values are crucial for the functioning of a successful democracy. Today, technology has brought new challenges to free speech, particularly on online platforms. However, it is more important than ever to protect free speech, even on online platforms like Twitter, which has become the modern-day town square. Elon Musk's advocacy for free speech and the marketplace of ideas is particularly relevant in today's world. His tweets often challenge the status quo and push back against censorship and propaganda, which is crucial in a world where governments around the world continue to use censorship and propaganda to control their populations. The protection of free speech and the marketplace of ideas is essential to ensure that our society continues to thrive and progress.