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Pictured in this graph: what xG does to a motherfucker.
I thought this graph was super interesting as it is a near-perfect illustration of when data analytics and advanced statistics started to enter into football (2014-2016) and some of the effects it's had on the game.
EDIT: Forgot to paste a link to the complete article.
I don't think they'll completely disappear, but that will probably be more down to most players being bad at making optimal decisions all the time than anything else.