Anonymous. (2026). TODO (mediator-side synthesis claim): even under uncertainty about the strength of the causal link, a precautionary policy stance toward adolescent smartphone access is justified. (Used as a synthesis target for arguments from both sides.). Isonomia. https://www.isonomia.app/a/ByAY6Ei1@0c53753cc907287ea3208d69b7fed69b64a5069582eced73bc86978f79fe9c39