Red Sparrows are common creatures in The Legend of Zelda: Tears of the Kingdom. They're little birds with pale, pink-and-white plumage. They make their homes in the snowy, mountainous regions of ...

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.

Social media companies and their respective algorithms have repeatedly been accused of fueling political polarization by promoting divisive content on their platforms. Now, two U.S. Senators have ...