Another part of this I think that people don't really talk about is increased social isolation as a direct cause of Internet addiction and the rise of social media and online gaming. There is a term for this concept in Japan 'hikikomori', but it's just as true in the US.

As someone who recently turned 30, yet has remained single most of my life despite my other successes, I see it very clearly. I grew up along with the Internet as many people in my generation did. Even when around other people in my age group, everyone is disconnected from each other. There's less empathy and relationships in my generation feel more superficial. At any moment, someone will pull out a smartphone and be using social media while literally standing around with a group of supposed friends. I'd say it's the group of people I've hung out with if it weren't for observing the same in the wild many many times.

I think we still haven't figured out what all the unintended consequences from technology are going to be, and I wouldn't be surprised if we didn't end up seeing a sharp decline in the birth rate among whites in the US to go along with the increase in younger deaths. Not just because of the consequences of social isolation on mental health, but because the lack of social connectedness that exists today makes it almost impossible to actually procreate.