@dougmerritt@mathstodon.xyz "Increasing isolation" is not a way I'd thought to interpret the graph, but you have a point. Another reaction is that migration to Europe from US may not have outweighed migration to the US since the post-WWII period. The article accompanying the graph doesn't say if "workers" includes students. Talented students have long come to the US and stayed. Recovering from their absence would take a decade even if the political climate changed today.