The honest answer: because it shouldn’t work and has never been done before. TeX has no arrays, no functions with return values, no convenient local variables or stack frames, no integers bigger than 2^{31}-1, no bitwise operations. Macro expansion can recurse, but you get no call stack and deep recursion quickly hits engine limits. What TeX does have is a Turing-complete macro expansion engine and, with e-TeX extensions (used by modern pdfTeX), up to 32,768 integer registers called \count. That turns out to be just barely enough to implement a chess engine.
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香港人Karena今年29歲，三年前定居杜拜發展房地產。她現時住在生產城（Production City），遠離機場但靠近港口。戰事發生後的每個晚上，她都在家裡看到無人機在天空爆炸，「房子是會震的」。。业内人士推荐新收录的资料作为进阶阅读
NPC Prompt 设计一开始我以为这件事只是工程问题：给 AI 写一个人物设定，让它模仿说话就可以了。但很快我发现，这远远不够。
李碧华《潘金莲之前世今生》与茅盾《子夜》的相似段落（图：抒情的森林）。PDF资料对此有专业解读