Andy Lee

NVIDIA sells the advanced computer chips that are powering the AI boom, and it sells a lot of them.

Its quarterly profit almost doubled from a year earlier to $43 billion.

But NVIDIA has also become a bellwether for all of investors' hopes about the AI boom.

And they're mounting worries that it will crash and burn.

At the same time, some investors are also worried that AI will become too effective and will destroy jobs and companies and the overall economy.

Andy Lee is a tech analyst for credit sites.

People are just getting more and more antsy.

As he points out, that means that every headline about big AI companies, even the good ones, can make investors even more worried.

Maria Aspen, NPR News.