Basic Attention Token, or BAT, is aiming to change how we think about online advertising. Instead of just seeing ads everywhere online without any benefit, BAT rewards you for viewing ads through the Brave browser. Imagine surfing the web, watching ads that interest you, and getting paid for it in BAT tokens. It's all about giving power back to you, the user, by rewarding your attention and helping advertisers find the right audience in a more private and efficient way.