I have a running thesis that I've been building out in my head for a while, and continue to see more data to support it. Basically - our technology has significantly outgrown our biological and evolutionary roots.
So much of the modern world is unnatural from an evolutionary perspective. One post can reach millions of people, a far cry from how our brain evolved to process social connections. We just don't have the tools to process the modern media and social media landscape. I can't imagine what it's doing to the developing brain.
I see so much of society similar to a deer freezing in headlights. Cars have been around for a while, but only blink of an eye in an evolutionary timescale. Deer haven't been able to catch up. In some ways, I fear our society is quite the same for us.