This report examines Elon Musk’s evolution from PayPal co-founder to the driving force behind Tesla, SpaceX, Neuralink, and The Boring Company, illustrating how his bold vision—from electrifying transportation and reusable rockets to brain-machine interfaces—has reshaped the automotive, aerospace, energy, and infrastructure sectors. It analyzes his risk-embracing leadership style, public controversies, and regulatory battles, assesses the far-reaching economic and societal impacts of his disruptive ventures, and distills key lessons for entrepreneurs, investors, and policymakers on harnessing audacious innovation to drive transformative change.