Figure 1.6 shows us something important about the internet era: It came in two waves. The 1990s saw a rapid increase in the paired technologies of personal computers and internet access (via modem, back then), both of which could be found in most homes by 2001. Over the next 10 years, there was no decline in teen mental health.[26] Millennial teens, who grew up playing in that first wave, were slightly happier, on average, than Gen X had been when they were teens. The second wave was the rapid increase in the paired technologies of social media and the smartphone, which reached a majority of
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