1/ Judgment is a matter of trust. Any form of system has at least one problem that it cannot determine internally. A secure system must uniquely address this' undecidable problem 'and hand it over to a clear external mechanism for handling. 2/ The design of Bitcoin is exemplary: TX layer logic is fully computable and unambiguous The issue of self referential legitimacy is handed over to the Block layer through 'computational equivalence' The only undecidable problem in the Block layer is' which block is valid ' This existence issue was determined through a time+consensus game 3/ This judgment process is not entrusted to humans, not to the code, But based on Turing's "Ordinal Logic System": Oracle Turing Machine+Ultra Poor Iteration In reality, 'time' is the oracle Participants converge together in physical time to determine who exists 4/ And PoS or majority token logic is: Leave the determination of 'existence' to a finite set of people/nodes Believe in 'people' or 'code representatives', This system can operate, but it is not a truly decentralized 'judgment system' 5/ If the determinacy of a Token We still need to rely on manual consensus, community voting, and project explanation—— Its trust foundation is not as strong as the stock system, Stocks have at least legal and auditing requirements, while tokens may only have "emotional consensus". 6/ Turing complete! =Safe and complete The smart contract language brings expressiveness and transparency, But it's not judgmental or secure. True security comes from the "only undecidable problem" in structure and a trustworthy external judgment mechanism. 7/ The three types of "discriminative agents" in encryption systems: Trust Physical Time → Bitcoin (Oracle+Ultra Poor Iteration) Code Agent → PoS Chain Trust → Stock System or Centralized Token The essence of safety is who do you entrust the problem of judgment to? 8/ Designing a security system is not just about writing contracts. It's a logical problem. You must be aware of: Which problem in your system cannot be self determined How did you leave it to the 'outside' to judge Who do you trust, or can you not trust anyone? 9/ So, security ≠ Turing completeness, ≠ smart contract showmanship Security=Clear judgment structure+Trusted judgment agent Bitcoin achieves maximum discriminative extrapolation with the most restrained structure This is the root of its stability without the need for updates. https://(github.com)/gguoss/My-10-Year-Journey-in-the-Crypto-World/blob/main/%E5%88%A4%E5%AE%9A%E6%80%A7%E3%80%81%E4%BF%A1%E4%BB%BB%E4%B8%8E%E7%B3%BB%E7%BB%9F%E8%AE%BE%E8%AE%A1%E7%9A%84%E8%BE%B9%E7%95%8C%E9%80%BB%E8%BE%91.md