During a significant meeting with technology leaders, Donald Trump issued a stark warning, stating, "I hope you know what you're doing." This remark came on the final day of his two-day state visit to the UK, where he engaged in discussions with Sir Keir Starmer regarding tech investment, steel tariffs, and global conflicts.

In front of prominent figures in the tech industry, Trump remarked, "We’re taking the next logical step with a historic agreement on science and technology partnerships. This will create new government, academic, and private sector cooperation in areas such as AI - which is taking over the world." He specifically addressed Jensen Huang, the president and CEO of NVIDIA, saying, "I’m looking at you guys, you’re taking over the world Jensen. I don’t know what you’re doing here, I hope you’re right, all I can say is we both hope you’re right."

Huang's company has seen remarkable growth amid the AI boom, becoming the first to reach a market capitalisation of $4.0 trillion in July 2025. The meeting also included other notable Trump administration officials, such as Commerce Secretary Howard Lutnick and Secretary of State Marco Rubio.

In conjunction with the visit, the UK government announced that U.S. companies have pledged £150 billion ($204 billion) in investments in the UK. This includes a substantial £90 billion ($122 billion) commitment from investment firm Blackstone over the next decade. Additionally, UK firms are set to invest nearly $30 billion in the U.S., with pharmaceutical giant GSK leading the charge.

Starmer described the investment package as “the biggest investment package of its kind in British history by a country mile.” The two leaders also formalised a “tech prosperity deal,” which UK officials claim will generate thousands of jobs and billions in investments across artificial intelligence, quantum computing, and nuclear energy.

This agreement includes the establishment of a UK arm of Stargate, an AI infrastructure project backed by Trump and led by OpenAI, alongside a network of AI data centres throughout the UK. American firms are set to announce £31 billion ($42 billion) in investments in the UK’s AI sector, with Microsoft committing $30 billion for projects, including the development of Britain’s largest supercomputer.