If you put your notes on your refrigerator, your refrigerator can be synchronized with all refrigerators in the world. I can read the notes on the refrigerator of the person I follow on my refrigerator. Only then can real decentralization be achieved. What needs to be done here is not to put a lot of refrigerators in everyone's home to maintain decentralization. Instead, each refrigerator automatically broadcasts the notes on the refrigerator at home to refrigerators all over the world. This is a truly decentralized refrigerator.