Foresight News 消息，Vitalik Buterin 于 Farcaster 发文称，安全性的目标是最小化用户意图与系统实际行为的偏差。「用户体验」也可如此定义，因此安全性与用户体验并非独立领域；安全性更聚焦尾部风险（偏差代价大）及对抗性行为引发的尾部风险。完美安全不可能，因「用户意图」本身极其复杂，用户难以清晰表达（如「发送 1 枚 ETH 给 Bob」中 Bob 无法数学定义）。更复杂目标如「保护隐私」同样难定义（元数据泄露远超加密本身）。这与早期 AI 安全问题类似：目标难以稳健指定。
优秀安全方案应包含的特征：用户以多重、重叠方式表达意图，系统仅在多角度对齐时执行。示例包括编程中的类型系统、形式化验证、交易模拟、交易后断言、多签 / 社交恢复、支出限额与异常确认等，通过冗余降低风险。此外，LLM 可作为意图模拟（通用 LLM 近似人类常识，用户微调 LLM 近似用户本身），但绝不可单独决定意图，仅作为一种不同角度补充，提高冗余有效性。
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