Phone as a displacement machine

Smartphones function less like a poisoning agent and more like an always‑on delivery system that replaces other activities (sleep, face‑to‑face socializing, supervised learning) — so their net effect depends on what they displace and what flows through them (news, social comparison, solidarity, junk). Randomized trials that log people off show short‑term wellbeing gains but also information loss, implying tradeoffs rather than a single‑axis harm. — Framing phones as displacement devices reframes policy from bans or tech scapegoating toward targeted interventions that change what flows through phones and what activities they replace.