Researchers used algebra and geometry together to solve an old random walk problem. Random walk ideas have informed everything from biology to video games. This team identified a key geometry idea ...

Neighborhood walkability is a bit of a chicken-and-egg problem: Does living in a walkable city make you walk more, or do active people choose to live where it’s easier to walk? To investigate, ...

In an internal memo last year, Meta said the political tumult in the United States would distract critics from the feature’s release. By Kashmir Hill Kalley Huang and Mike Isaac Kashmir Hill reported ...

OpenAI is an artificial intelligence organization comprised of the non-profit OpenAI, Inc. and several for-profit subsidiaries. The company is perhaps best known for its ChatGPT chatbot, which ...