1.Blockchain has suffered from current concepts, systems, and laws.
 The feature of blockchain decentralization, self-management, and collective maintenance have subverted people’s production and lifestyles, diluted the concept of state and supervision, and impacted current legal arrangements.Â
- At the technical level, the blockchain still needs breakthrough progress
Blockchain applications are still in the initial development stage of the laboratory, and there is not intuitively available mature product.Â
- Competitive technical challenges
people would consider which technology is more convenient and efficient.