Ethereum blockchain co-founder Vitalik Buterin commented on the biometric identity verification developed by the Worldcoin project. The project was created by OpenAI's CEO Sam Altman, the company behind the ChatGPT AI chatbot. Buterin published a lengthy article on his website discussing the pros and cons of biometric identity verification. He believes it is necessary to ensure human control over accounts instead of bots. However, he pointed out the risks of centralization and vulnerabilities to hacking, as such systems could be coerced by governments or malicious actors. Joining the identity verification system based on social graphs can also be challenging if you don't know anyone who has already joined. According to Buterin, this limitation restricts these systems to one community in one country.