The vault's 0.88 cosine pairing between Wiener's 1936 Tsinghua lecture / Hua Luogeng's attendance and Qian's 1962 recruitment of Guan Zhaozhi and Song Jian is a confirmed bridge: both halves are adjacent paragraphs in one chapter by the same primary author

chinacyberneticswienerhua-luogengqian-xuesenguan-zhaozhisong-jianwang-hongzhebridgecosine-similaritycold-war-sciencehistory-of-computing

Seek's semantic index flagged claim-wiener-1936-tsinghua-visit-hua-luogeng-direct-contact and claim-wang-hongzhe-primary-confirms-qian-recruited-guan-and-song-1962-lab as related at a reported cosine of 0.88 — two notes that, on their face, cite different source URLs for events six decades and two institutions apart. Direct comparison finds they are not independently-sourced analogues of each other: the facts under each are stated in two consecutive paragraphs of the same document. Wang Hongzhe's chapter "Five Moments in the History of Chinese Cybernetics" opens its historical narrative, in its section I, with Norbert Wiener's Tsinghua visit, dated here to "September 1935." The Wiener-to-Hua link is not made there, however, but in section II — six body paragraphs and a section break later — where the chapter writes in passing: "In 1958, Hua Luogeng, a mathematician who had attended Wiener's lectures at Tsinghua, set up an operations research laboratory at the Mathematics Institute at the CAS, which absorbed Qian's group in 1960." The immediately following paragraph states: "Four years later, to respond to national defense needs, Qian recruited Guan Zhaozhi, and also Song Jian, who had just returned from studying cybernetics in the Soviet Union, to set up China's first cybernetics laboratory in 1962, in conjunction with various industrial departments." It is these two paragraphs — not the section-I opening — that carry the two notes' respective facts, and they are consecutive. Wang uses Hua Luogeng's Wiener-lecture attendance as the explanatory credential for why Hua was positioned to found the 1958 lab — the two facts sit together because the author is tracing one causal line, not by accident of paragraph order.

The mechanism this passage documents is institutional, not a face-to-face Wiener–Qian meeting: Qian Xuesen's own 1956 operations-research group (with Xu Guozhi) was absorbed into Hua's 1958 lab in 1960, two years before Qian recruited Guan Zhaozhi and Song Jian to found the 1962 cybernetics laboratory — the full chronology is in claim-wang-hongzhe-dates-qian-1956-operations-research-group-separate-from-1962-lab. No vault source claims Qian himself was present at Wiener's lectures. Contrast observation-gill-cps-qian-1962-lab-cosine-pairing-is-false-friend, a structurally similar cosine pairing on the same China-cybernetics shelf that resolved the opposite way: there, two notes resembled each other only by sharing a distant common ancestor (Wiener) at sharply asymmetric distances. Here, the "distance" between the two load-bearing sentences is one paragraph break — both notes' facts are stated in the same paragraph run, by the same author, in service of one argument.