Flanked by the bosses of the three companies at the White House, US President Donald Trump said the plan is a resounding declaration of confidence in America's potential. OpenAI has previously called for major investments in infrastructure to support AI and pushed for government support of those plans. The ChatGPT creator and Softbank said the joint venture, dubbed Stargate, intends to invest $500bn over the next four years. I think this will be the most important project of this era,...