The iPhone turns 10 – and it's isolated us, not united us
- Written by Jean Twenge, Professor of Psychology, San Diego State University

Sometime around 2011 or 2012, it suddenly became very easy to predict what people would be doing in public places: Most would be looking down at their phones.
For years, mobile phones weren’t much to look at. The screens were small, and users needed to press the same key...
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