CHEQUERS, England, Sept 18 (Reuters) - U.S. President

Donald Trump said on Thursday artificial intelligence was taking

over the world and he hoped tech bosses know what they were

doing, because he didn't.

Trump and British Prime Minister Keir Starmer hosted

business and tech leaders including chipmaker Nvidia's ( NVDA )

CEO Jensen Huang as part of the president's second state visit

to Britain.

Departing from a script that celebrated the relationship

between the two countries, a new tech partnership and hundreds

of billions of dollars in investments, Trump acknowledged that

he was limited in what he knew about AI.

"This will create new government, academic and private

sector cooperation in areas such as AI, which is taking over the

world... I'm looking at you guys. You're taking over the world.

Jensen, I don't know what you're doing here," Trump said,

addressing the Nvidia ( NVDA ) boss, to laughter from Starmer and the

audience.

"I hope you're right. All I can say is, we both hope you're

right."

Trump and Starmer then signed a "Tech Prosperity Deal" on

joint efforts to develop AI models for healthcare, expand

quantum computing capabilities and streamline civil nuclear

projects.

As part of the deal, Nvidia ( NVDA ) said it would deploy 120,000

graphics processing units across Britain - its largest rollout

in Europe to date.

Before putting pen to paper, Trump jokingly asked Treasury

Secretary Scott Bessent "should I sign this?"

"Are you sure Scott? If the deal's no good, I'm blaming you,

Scott," Trump said.