The stock market is in a bubble, but it can keep growing.Johannes Eisele/AFP via Getty Images The stock market is in a bubble, but that doesn't mean investors should sell their stocks right now ...

Image source: Getty Images. But Nvidia has been usurped as Wall Street's AI darling by data-mining specialist Palantir Technologies (NASDAQ: PLTR).Heading into this week, Palantir was worth $293 ...