To The Moon

Nvidia has become the U.S.'s most valuable listed company because of the demand for its artificial-intelligence chips, leading a tech boom that brings back memories of one from earlier this century.Nvidia's chips have been the workhorses of the AI boom, essential tools in the creation of sophisticated AI systems that have captured the public's imagination with their ability to produce cogent text, images and audio with minimal prompting.Cisco was riding the wave of a different revolution -- the internet -- where its products powered that budding industry. Like Nvidia, Cisco also surpassed Microsoft to become the most valuable company.Nvidia, a 31-year-old company, became the world's most valuable firm on Tuesday. The stock closed at $135.58, giving the chip maker a valuation of $3.335 trillion, just above Microsoft at $3.317 trillion.The stunning rise has won plaudits from analysts who agree with Chief Executive Jensen Huang's assertion that AI is the foundation of a new industrial rev

As the stock market has convulsed lower and yields for bonds have surged in recent weeks, culminatin