效率的提升，并不是少写了代码，而是减少了反复试错和信息查找的时间。
How this addresses the real-world failures from earlier
。关于这个话题，heLLoword翻译官方下载提供了深入分析
Why Standard Solutions Failed
And that she said was all sooth. I wifed on her, and she was full shyne wife, wise and wælfast. Ne yemeet I never ere suche woman. She was on yefoughte so bold so any man, and theah hwæthere her andwlite was winesome and fair.
When we run timeTravel(checkoutFlow, traceLog), it will actually exercise our checkout workflow, and produce the following output. With that, we’ve successfully executed a production execution trace locally, all without touching any database or external service: