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Why can I port my posts but not the profile platforms built from watching me?

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機会

GDPR Article 20 gives you the right to take your data to a new service, but it explicitly excludes inferred and derived data. The preference scores, behavioral segments, attention graphs, and interest models that recommendation platforms build from years of your activity stay with the incumbent when you leave. A 2024 Computer Law and Security Review study found this asymmetry is structurally entrenching: a competitor who receives your raw data still has to rebuild years of signal from scratch while the incumbent retains the refined interpretation. A 2025 arXiv study on recommender profile portability confirmed that even when raw interaction histories transfer between services, recommendation quality does not follow.

重要な理由

Portability rights that exclude derived profiles leave the most valuable part of your digital life permanently locked to whoever first processed it.

機会をどう評価するか

Opportunity Scoreは測定値ではなく、私自身の見解です。どれほど痛みを伴うか、どれほど頻繁に影響を与えるか、そして今日時点で解決策がいかに少ないか。スコアが高いほど、構築する価値が高いと私は考えています。

深刻度8/10

それが現れたときにどれほどの痛みをもたらすか。

頻度7/10

実際にどれほど頻繁に人々がそれに直面するか。

ホワイトスペース9/10

今日時点で、それに対する優れたツールがいかに少ないか。

解決する価値のある問題をもっと見る