Investors definitely weren’t thinking this way on Monday, concerned about reports that Chinese artificial-intelligence service DeepSeek was substantially cheaper and better than OpenAI.  This is a good time to remind all investors that the stock market is really just a manic crowd.

A new Chinese AI model threatens to diminish the need for Nvidia’s most-expensive chips, but some say the concerns are overblown.

This story incorporates reporting from The Motley Fool, scmp.com and MSN.The rise of Chinese AI startup DeepSeek has caused ripples across the technology sector by exposing potential weaknesses in Nvidia’s market dominance.