The starting point was due to the beginning of the epidemic control when the physical channels of connection to the outside were changed from diversity to singularity. As a bridge to the outside world, the job of a takeaway worker also made me aware of the fact that, behind the rise of the takeaway worker, there was a group of "Smart" that was gradually declining and decaying. Starting from the direction of the group's evolution, I found that the "Smart" group itself has changed in three aspects: "social structure", "identity" and "virtual identity". The study finds that the "Smart" themselves have changed in three aspects: "social structure", "identity" and "virtual identity", while depicting the development of China's urbanization process.

Three stories are told through narrative means, all of them from different locations in the same period. The story recalls the "social", "identity" and "virtual role" of the "Smart" in the process of urbanization. The changing characteristics of the "Smart" in response to the specificities of the urbanization process that was developing in China at the time. A collection and consolidation of materials about "home" left over from the large scale "changes" and "demolitions" in the urbanization process and used as the main material for the creation. The role of the "Smart" in the initial urbanization process, as temporary workers who mainly built "homes", was often accompanied by "demolition" to determine the disappearance of another "home". In the process of construction, it is not possible to give them their own "home" in the process of urbanization. The "disappearance" of this particular group of mobile people in the development process of the times is found again in the rapid capture of the next identity change. The fragile emotions revealed are all expressed in the orderly and calm stacking using the large amount of construction waste collected.

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