The Stargate AI project has prominent and wealthy backers, but $500 billion in spending could still prove to be a heavy lift.

OpenAI CEO Sam Altman called Stargate, “the most important project for this era” and promised that all of the new investment his company was making would help cure diseases. Altman was actually prompted by Trump to talk about the medical advances that AI would supposedly figure out.

Trump said the private sector joint venture will build data centers and create more than 100,000 jobs in the United States.