A lot of things unraveled around 2012.
I love how Covid lockdowns clearly show up in so many graphs going across the past few decades. It's going to be a real gem for researchers in general going forward.
That is an impressive number of graphs and very cool! I wonder if the author would consider repeating with KDE plots instead of splines, so the pretty shape of the curves has some statistical meaning also
The iphone + fb/instagram = kids spending more time on the screen than irl
Since, youth suicide, depression, anxiety, etc have hit record levels. Coincides with the smart phone adoption and negative emotion graphs.