Yes, I know what the expression means. But that doesn’t answer the objection, which is “why are we concerning ourselves with the direction of the errors, when our objective should be to not have errors?”
The actual answer has already been given elsethread (a situation where changing the sign of the error is substantially easier than reducing magnitude of error, plus a payoff matrix that is asymmetric w.r.t. the direction of error).
Yes, I know what the expression means. But that doesn’t answer the objection, which is “why are we concerning ourselves with the direction of the errors, when our objective should be to not have errors?”
The actual answer has already been given elsethread (a situation where changing the sign of the error is substantially easier than reducing magnitude of error, plus a payoff matrix that is asymmetric w.r.t. the direction of error).