>>211981516
>>211981677
The source is here, social class is particularly "sticky". The author discovered that Scandinavia wasn't, despite the memes, a land of egalitarian social mobility but is more stratified based on class than people think. When people look at the short term shifts, they're missing the long term regression to the baseline. The dumbshit family last names from 300 years ago are the same dumbshit family last names today.

It's actually, surprisingly, Russia that has rapid social mobility up and down.