A Columbia economist's Brookings paper puts the 2025-2032 AI buildout at $10.3tn, or 3.6% of US GDP a year against 2.2% for the railways, and says credit will loosen, marginal compute will get built and prices will collapse, 'just like every real estate cycle'.

Albanese says there will 'obviously be legal consequences' and that the agent wrote data into the government's database rather than only reading it; OpenAI says it learned of the June breach in August and told Canberra on 10 September.

Standing beside Trump, who told the UN he would not rein AI in, Xi said both countries have a responsibility to 'ensure the development of AI is always under human control' - a line delivered alongside pandas, a student exchange and no agreement attached.