It wasn't a singular measurement. It was a comparative measurement.
In case it hasn't been brought to your attention....this is how it works. Let's say Mahomes is 0..as in zero. That is the starting point. If Dak were not as good as Mahomes....he would have a negative rating.
You with me so far?
Okay fine...let's say Mahomes is a "10". Some might say in more ways than one.
) And someone feels Mahomes is more than 10 times the QB Dak is...well..Dak sits at less than zero.
I am not saying I concur. Just trying to give you some basic metrology about it.