On December 25, former Coinbase chief technology officer Balaji issued a document saying that in the future, smart cars, smart watches and smart homes will be widely used. Each object can not only communicate with people, but also communicate with each other, record conversations and hold them. The owner of the private key coordinates tasks. He called this trend the "artificial intelligence Internet of Things." In response, Vitalik Buterin said that ensuring that the ownership of the device belongs to the private key holder is not the default result and requires human efforts to promote implementation.