So, a schmuck in the audience tries to make the Krugman point, and cites Krugman as an authority. Hilarity ensues.
P-Kroog is a punch line, a clown. And it is not because he is dumb; far from it. He is completely unconstrained by facts or logic. I think P-Kroog actually believes he has evolved into pure energy, and need no longer worry about petty things.
(Nod to Leonard S)