谢 泳 | 郭沫若陈寅恪对对子掌故

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here’s a subtle but important consequence: in RE#, rewriting your regex using boolean algebra is always safe. factor out common prefixes, distribute over union, apply de Morgan’s laws - the matches won’t change. your regex is a specification of a set of strings, and the engine faithfully finds the leftmost-longest element of that set in the input. no surprises from alternation order, no “well it depends on how PCRE explores this search tree”. just set theory.

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这次失败对于哈萨比斯也是非常有意义的。我觉得这本书里面写的有一个点很好:一方面,对于AGI,对于科学发现,对于智能,哈萨比斯有自己的很深的一些哲思和理论;但另外一方面,他又非常崇尚费曼的一句话:“如果你不能把一个东西造出来,你就不能真正理解它。”所以他是一个知行合一的人。他如果想到一个通用的机器、一个智能体,他一定要把它造出来。我觉得打工和创业的这段经历,就奠定了他实际上不是一个空谈的科学家,他是一个实践的科学家。。Line官方版本下载对此有专业解读

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The old barges, once used to transport building materials, coal and food from the Port of London, have spent more than 30 years moored in Essex.