Guillermo Rauch：程序加固与优化可无限进行，需知何时停止
One thing the engineering community will (re)discover is that every program can be ① hardened (edge cases squashed, inputs tightened, errors handled) and ② opti
Guillermo Rauch 指出，每个程序都能在加固（消除边界情况、收紧输入、处理错误）和优化（性能分析、基准测试、重写）两个方向上近乎无限地推进。他强调每个方向都有真实成本——时间、注意力和机会，即便在 token 无限的世界里也必须知道何时停止、接受哪些权衡，而 Agents 会不加判断地一直钻下去。
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One thing the engineering community will (re)discover is that every program can be ① hardened (edge cases squashed, inputs tightened, errors handled) and ② optimized (profiled, benchmarked, rewritten) basically ad infinitum.
There are real costs in every direction: time, attention, opportunity. You can literally explore input spaces that will never be hit or optimize performance of something that will never be used ("you have no users".) Even in an infinite token world, you need to know when to stop and what tradeoffs to accept. Agents will happily drill no matter what.