さて昨日、所用があって東京へ移動。東京の「広尾」地区を訪れる用件を終了後、歩いていたら目前に「広尾中学校複合施設（仮称）」という工事現場を通りかかっていた。
　建設会社は東急建設で、設計者名には「山下設計・藤本壮介設計共同体」ということ。工事の状況は２枚目の写真の通りですが、そこそこの広さがあるので、大型の建築が想定されるところ。広尾中学校という公共施設の建て替えだけでこういった有名設計事務所が関わることはないでしょうから、その公共用地と施設を核にしながら、ひとつの「タウン機能」を満たすような建築が想定されていると推察。
　まぁ、わたしは住宅オンリーのフィールドで生きてきた人間なので、大型のタウン造成工事などについての情報は門外漢ですが、ちょっとした「地縁」でもあるので、興味を持たされた。というか、こりゃぁ広尾が大きく再開発されて、渋谷地域の変貌がさらに巨大化するのでしょうね。
　この広尾から最寄りの恵比寿駅ではなく渋谷駅方向に下りて行ったのですが、そこから都心の宿泊地まで移動する地下鉄渋谷駅まで、学生時代からサラリーマン時代までの８年間ほど親しんでいた「渋谷」とはまったく思えないほどの地域変貌ぶり。とくにここ数年の変容ぶりにはほとんど迷子状態（笑）。どうも地域再開発のグランドデザインがまったく見られない。混沌がそのまま表出の大都会ぶり。
　・・・というところですが、そういう道すがらでも昨日お伝えした、従兄弟同士での「家系史研究」対談をデータ化して、それを使ってまとめていくためのAIとのやり取りは同時並行。
　やはりこの時期の東京の温熱感はスゴいのでホテルに入ったら即爆睡後、やおら起き出してのやり取り。やはり「プロンプト」の書き方が決定的に重要ですね。簡単に「ハルシネーション」に落ち込ませずに、働かせるには「情報管理力」みたいなものが決定的なのだなぁと痛感させられる。
　しかしわたしなどの世代は、そもそもIT化の最先端変容の第１世代という経験知を経た存在である上に、いまはAI変容をも第１世代として受け止める存在。そういうなかでの「高齢化」なので、世代としての共通興味ゾーン「この世あの世」を強く意識する世代として、家系の情報の「デジタル的変化」にも取り組んでいかなければならない宿命。ふ〜む、これもこの時代を生きる者の因果応報なのかなぁ？

●お知らせ
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English version⬇

[Exploring Family History with AI & Discovering a Large-Scale Development Site in Shibuya, Tokyo]
Walking through a rapidly changing metropolis while using AI to organize our family history. A construction site in Hiroo and a late-night conversation about family history at a hotel. Reimagining both the city and our memories…

　Well, yesterday I traveled to Tokyo on some business. After wrapping up my business in Tokyo’s “Hiroo” district, I was walking around when I happened to pass by a construction site labeled “Hiroo Junior High School Complex (tentative name).”
　The construction company is Tokyu Construction, and the design firm is listed as the “Yamashita Sekkei and Sou Fujimoto Design Consortium.” As shown in the second photo, the site is quite spacious, so it’s likely intended for a large-scale building. It’s unlikely that such renowned architectural firms would be involved just for the reconstruction of a public facility like Hiroo Junior High School, so I surmise that the plan is for a building that serves as a “town hub,” with the public land and facility at its core.
Well, since I’ve spent my entire career in the residential sector, I’m a complete outsider when it comes to large-scale urban development projects, but because I have a slight “local connection” to the area, it piqued my interest. Or rather, this probably means Hiroo is undergoing major redevelopment, which will further accelerate the transformation of the Shibuya area.
　From Hiroo, I headed down toward Shibuya Station rather than the nearest Ebisu Station, and the area’s transformation was so drastic that it was completely unrecognizable as the “Shibuya” I’d been familiar with for about eight years—from my student days through my time as a salaryman—all the way to Shibuya Subway Station, where I’d transfer to reach my downtown lodging. The changes over the past few years in particular have left me practically lost (laughs). It really feels like there’s no overarching master plan for the area’s redevelopment at all. It’s just a big city where chaos is on full display.
　…Anyway, even while walking along those streets, I was simultaneously working on digitizing the “family history research” conversation between my cousins that I mentioned yesterday, and using that data to compile my notes through interactions with AI.
　As expected, the heat in Tokyo at this time of year is intense, so as soon as I got to the hotel, I fell into a deep sleep, then woke up slowly to continue the work. It really drives home how critically important the way you write “prompts” is. I’m keenly aware that “information management skills”—or something like that—are essential for keeping the AI working effectively without letting it slip into “hallucinations” too easily.
　However, people of my generation have not only experienced the first wave of cutting-edge IT transformation firsthand but are now also the first generation to embrace the transformation brought by AI. Given that we’re “aging” in this context—as a generation strongly conscious of our shared interest in “this world and the next”—we’re destined to tackle the “digital transformation” of our family history. Hmm, I wonder if this is just karma for those of us living in this era?

● Announcement
My book, *Writers and Living Spaces*, has been published as an e-book by Gentosha.
Available on Amazon.

Posted on 7月 17th, 2026 by 三木 奎吾
Filed under: 未分類