Twitter's rebranding as 'X' is rooted in Elon Musk's 1999 venture, 'X.com,' aimed at revolutionizing the financial industry.'X.com' later became PayPal after a merger, but Musk remained attached to the name, symbolizing his long-term vision.Musk envisions transforming Twitter into a financial platform and social network, powered by AI, offering services like payments and messaging.The goal is to create a super app like China's WeChat, integrating various services, becoming a global marketplace for ideas and goods.