Hypothetical devices that can quickly and accurately answer questions have become a powerful tool in computational complexity theory.

"I think the information that you’re going to have about this is available to you right now,” Stephanie Holmes told workers at Elon Musk's DOGE who pressed for detail on offers of “deferred ...

A growing number of US government websites have gone offline as of Saturday, including several related to USAID and others focused on youth programs, Africa, and more.