【Vitalik reminds that ownership of private keys requires effort】On December 25, former Coinbase CTO Balaji stated that in the future, there will be widespread applications of smart cars, smart watches, and smart homes, where each object can not only communicate with people but also communicate with each other, record conversations, and coordinate tasks for their private key holders. He referred to this trend as 'Artificial Intelligence Internet of Things.' In response, Vitalik Buterin stated that ensuring device ownership belongs to the private key holders is not a default outcome and requires human effort to achieve.