The blue line is how efficiently wealth is produced in the USA
The red line shows where the wages of college educated people are going in comparison to that new wealth (i.e. in the pockets of the rich). And the vast uninsured obese underclass of US is faring even worse heading DOWNWARDS! This is something we need to avoid in Europe, to avoid ending up like the US. The prosperity of a country should be relatively uniformly spread to the population.
Now here is a radical idea for the USA! A new deal!