What does the latest national five have to do with boots? Why did the news say that the boots landed?

Boots are just a metaphor. Originated from a joke; An old man lives upstairs in his house. A young man throws his boots on the ground every night when he sleeps. Old people are always woken up and have insomnia. Later, I simply waited until my boots landed before going to bed. One day, the young man fell asleep with only one boot off. The old man didn't hear the second boot ring and stayed up all night. The landing of boots means that things have come to a conclusion, and the five implementation rules of China have been introduced one after another, which means that the policy of this round of real estate regulation has been clarified.