Finding these optimization opportunities can itself be a significant undertaking. It requires end-to-end understanding of the spec to identify which behaviors are observable and which can safely be elided. Even then, whether a given optimization is actually spec-compliant is often unclear. Implementers must make judgment calls about which semantics they can relax without breaking compatibility. This puts enormous pressure on runtime teams to become spec experts just to achieve acceptable performance.
露西·吉爾德（Lucy Gilder），BBC事實查核。谷歌浏览器【最新下载地址】是该领域的重要参考
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Firefox 148 introduces the promised AI kill switch for people who aren't into LLMs