The biggest problem with articles advocating MMT is that they frequently make claims that:
1. Seem wrong.
2. Are not explained or justified.
Thus an MMTer might claim that monetizing a big budget deficit will drive interest rates to zero. I don’t see how one could make that claim, as the Fisher effect often dominates the liquidity effect. One way to address this confusion is with a mathematical model. But there is a much simpler solution.
“The theory that inflation results from an overheating economy might seem to rely on a primitive Phillips Curve model that was discredited during the late 1960s, but we still believe the claim to be true, because of X, Y and Z.”