How so?
Rush has no science and doesn’t really comprehend the concept of scientific modeling. Rather, he compares the present to what he has complained about for years and years, climate modeling.
There is not a valid comparison, but that did not stop him from going off on this erroneous tangent.
He got ie wrong because of his superficial thinking. Further, in his rambling he was on and off the subject and tangential and muddled. It was his worst performance ever