AI is making it hard to prove you are a real human online, and biometric ID systems like Sam Altman's World ID are stepping into that gap, which is good for tech companies but troubling for privacy.

• AI bots are flooding the internet, making it hard to tell real people from machines.
• Sam Altman's World ID asks people to scan their eyeballs to get a credential that proves they are human.
• A global ID system would never pass as a law, so it is being rolled out as a convenient product people sign up for voluntarily.
• The trade-off is privacy: handing over biometric data like iris scans to a private company in exchange for everyday convenience.

Outlook: Expect more apps, websites, and services to start asking for biometric proof of humanness as AI-generated content keeps spreading.