「引き留める設計」と「鍛える設計」——AB 1709訴訟が問う、テクノロジーの意図
「引き留める設計」と「鍛える設計」——AB 1709訴訟が問う、テクノロジーの意図 Google、Meta、TikTokがカリフォルニア州法AB 1709の施行差し止めを求めて提訴しました。「心理的に搾取的な機能」で子どもを依存させないための規制をめぐる争いです（The Guardian, 2026年11月5日）。エンジニアとして、この訴訟を単なる法務の話として読むのはもったいないと感じます。争点は「画面そのもの」ではなく「設計の意図」だからです。 同じハードウェア、同じレンダリングパイプラインでも、目的関数が違えば結果は正反対になります。滞在時間を最大化する最適化と、ユーザーの視覚機能そのものを変化させる最適化は、コードの上では別物です。前者はセッション長を報酬に、後者は両眼の視差信号を報酬にしている——最適化対象が違うのです。 弱視（lazy eye /…
The "AB 1709 lawsuit" concerns the "pulling" design versus the "hardening" design in technology, with Google, Meta, and TikTok seeking to halt the implementation of California's AB 1709 law. This dispute revolves around the regulation of "psychologically exploitative features" to prevent child dependency, according to The Guardian (2026 November 5).
The focus of the lawsuit is not the "screen itself" but the "design intention." The same hardware and rendering pipeline can yield opposite results depending on the purpose function. For instance, optimizing for maximum session time and optimizing to alter visual perception are two distinct outcomes. The former rewards session length, while the latter rewards binocular disparity signals—representing different optimization targets.
For individuals with weak vision (lazy eye/amblyopia) or visual coordination/discrimination challenges, digital devices have traditionally served as passive time. Seven Sports' Amblyotube, developed for the Meta Quest, flips this assumption. The VR headset employs separate 2D image feeds for each eye, akin to dichoptic training.
The mechanism is straightforward. The dominant eye is subjected to a blurring or contrast reduction shader through the "Digital Timeout" state (100% opaque digital patch or partial transparency for simultaneous processing). The weak eye benefits from AI Sharpener (MFBF mode), which detects faces and applies sharpening, red rings, yellow-green highlights, and Pulse Hz adjustments. The magenta focus cue is vivid for the weak eye and neutral gray for the dominant eye, prompting binocular fusion and depth perception practice.
Wedge Occlusion separates the visual field for each eye, alleviating binocular rivalry. The user selects which eye is weak during the first launch. This accuracy is crucial, as a mistake could train the dominant eye instead. Settings include Mild/Moderate/Severe presets, or an integrated LogMAR vision test (Landolt C optotype, virtual 3m, up to 30 trials) to automatically adjust the treatment profile.
YouTube-style content transforms into a "visual gym" for 30-40 minutes (maximum 1 hour), age 13 and above, serving as an auxiliary visual training/support tool, not a diagnosis or treatment. Access Meta Quest app at https://www.meta.com/en-gb/experiences/amblyotube/25906906972338493/.
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