Drugs and other addictive products turn us away from that. Heroin addicts retreat into themselves. The addict alone in his hoodie seems an emblem of the Opioid Era. Gambling, first undertaken as a social activity, turns quickly into something one does alone. Same with alcohol. Social media, meanwhile, more resembles prehistoric communication. On social media, we are unable to perceive the differences in tone and meaning that we have learned as a species through eons of face-to-face interaction. We see no facial expressions on Facebook. Nuance is hard to tweet. We mistake a playful phrase for
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