I'm seriously shocked by the Atlantic article. I live in the Silicon Valley, I've made my life startups, and my perception is I've never seen anything like the current environment. In my perception, the difference is the rise of a half dozen incubators like Y Combinator, which are everywhere now and turning out huge classes of entrepreneurs each year.
I'm data free compared to the Atlantic reporter, so maybe they have a point about it being just Silicon Valley, New York and Austin. Austin? I would have thought Seattle. Can confirm Sweden and China.
What I do think everyone talks about is how tough the incumbents have become to compete against. It used to be that big companies lost their ability to innovate but Amazon, Google, Apple, Facebook, and Tesla have become fierce competitors. Some startups are crushing it like Uber, Slack, Square and Airbnb. Far as I can tell, it's super cool around here to work for any of those companies except Facebook, and just two years ago Facebook was the coolest of the cool.