I think the article serves as a call for urgency for the approaching inflation. One of Grant's biggest followers is Seth Klarman. Klarman runs the Baupost Group

I think the article serves as a call for urgency for the approaching inflation. One of Grant's biggest followers is Seth Klarman. Klarman runs the Baupost Group, which is a hedge fund comprised mostly of endowment fund money. His fund is using interest rate caps and swaptions to hedge inflation instead of using TIPS. I don't know if calling Grant naive is correct. He has been ahead of the curve on spotting bubbles in the past and runs a well reputed magazine ($850/year subscription)