U.S. President Donald Trump said AI could become a bigger industry than the internet and that regulation should not choke growth as the United States competes with China. Speaking at a White House event with crypto industry figures and financial regulators, he also backed expanding AI infrastructure, including datacentres. Trump said companies should build power plants for datacentres rather than rely on ageing grids. Opposition is rising over power bills, water use and environmental impact, prompting protests and tougher state action.

Researchers at Pennsylvania State University have developed a self-powered integrated circuit that harvests energy from ambient light, detects chemicals in liquid and performs computing without a battery. The chip vertically integrates a graphene sensor, semiconductor logic and a silicon solar cell in a three-layer structure using 2D materials such as MoS2 and WSe2. The team said tighter integration can cut area, interconnect length, power loss and signal delay, with potential use in hard-to-access IoT and edge devices.