AI better deliver for the U.S., or its economy and markets will lose the one leg they are now standing on. Photo by Justin Sullivan/Getty Images/Postmedia files

The writer is chair of Rockefeller International. His latest book is ‘What Went Wrong With Capitalism’

Despite mounting threats to the United States economy from high tariffs to collapsing immigration, eroding institutions, rising debt and sticky inflation large companies and investors seem unfazed. They are increasingly confident that artificial intelligence is such a big force, it can counter all the challenges.

Lately, this optimism has become a self-fulfilling prophecy. The hundreds of billions of dollars companies are investing in AI now account for an astonishing 40 per cent share of U.S. GDP growth this year. And so

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