the most interesting takeaway here is not the part where predictor regressed to the mean, but that extreme things tend to be differently extreme on different axis.
Even though the two variables are strongly correlated, things that are extreme on one variable are somewhat closer to the mean on the other variable.
Even though the two variables are strongly correlated, things that are extreme on one variable are somewhat closer to the mean on the other variable.
Gotcha. Yeah that makes sense.