What disruptions in a world of MMT?

Modern monetary theory (MMT) calls for an expansionary fiscal policy combined with monetary financing of fiscal deficits, mak ing it possible to keep interest rates very low. MMT is spreading: this policy is clearly in use in Japan and is being considered in the euro zone and the United States. What kinds of disruption might be caused by the application of MMT throughout the OECD? There would not be massive capital outflows, since all countries would have near-zero interest rates; A massive real estate bubble would probably form. The first signs of this are already visible; There would probably be zombie banks everywhere, due to the low level of interest rates on loans.