When President Donald Trump began his tariff rollout, the business world predicted that his unprecedented attempt to reshape the economy would lead to a major recession, if he went through with it all. But the markets stabilized and, in recent months, have continued to surge. That has some people worried about an even bigger threat: that overinvestment in artificial intelligence is creating a bubble . Andrew Ross Sorkin, one of today's preëminent financial journalists, is well versed in what's happening; his début book, " Too Big to Fail," was an account of the 2008 financial crash, and this year he released " 1929: Inside the Greatest Crash in Wall Street History--and How It Shattered a Nation ." He tells David Remnick that the concern lies in the immense borrowing to build the infrastructure for a future A.I. economy, without the sufficient revenue, currently, to pay off the loans.

Critics' corner: The WSJ editorial board said Mr. Cohn's departure was "a significant blow" to Mr. Trump's presidency. The NYT editorial board said Mr. Cohn had done "an awful job," which still probably represented "the high-water mark for economic thinking" for this White House. And his former boss, Lloyd Blankfein, said he had served his country "in a first class way." Today's DealBook Briefing was written by Andrew Ross Sorkin on the road, and Michael J. de la Merced and Amie Tsang in London. The political bloc formally announced its plan to counterattack, including taxing American goods like Harley-Davidsons and bourbon and filing a challenge with the World Trade Organization.

Sophia is Hanson Robotics' latest and most advanced robot. She has also become a media darling, having given numerous interviews to multiple media outlets, sang in a concert, and even graced the cover of one of the top fashion magazines. One of her interviews has generated billions of views and social media interactions. She has also shown her potential in business, having met face-to-face with key decision makers across industries including banking, insurance, auto manufacturing, property development, media and entertainment. In addition, she has appeared onstage as a panel member and presenter in high-level conferences, covering how robotics and artificial intelligence will become a prevalent part of people lives.