The original version of this story appeared in Quanta Magazine. Imagine a town with two widget merchants. Customers prefer cheaper widgets, so the merchants must compete to set the lowest price.

Imagine a town with two widget merchants. Customers prefer cheaper widgets, so the merchants must compete to set the lowest price. Unhappy with their meager profits, they meet one night in a ...

Estimating the number of triangles in a graph is a fundamental problem and has found applications in many fields. This ...

When X's engineering team published the code that powers the platform's "for you" algorithm last month, Elon Musk said the ...