In 2016 Brendan Eich, the controversial creator of the JavaScript programming language and cofounder and former CTO of Mozilla, announced the launch of a new browser called Brave. The pitch was simple but ambitious: Brave would block invasive ads and tracking scripts, but it would also show its own, privacy-friendly ads in their place. And it would cut both publishers and users in on the proceeds. Nearly four years later, that vision is finally in place.

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