That's what I'm saying. If we're discussing an r² of 70 % on a population level they don't need to track anything to achieve that, just use the weight. So befor

That's what I'm saying. If we're discussing an r² of 70 % on a population level they don't need to track anything to achieve that, just use the weight. So before we can say whether 70 % is good or bad we need to know more about what those 70 % actually mean.