and part of the volatility of housing kriess is the flow of capital around the globe that ended up in the u.s. housing market. and that's why central banks around the world were taken down by our housing sector. so that is a problem of modifying housing because we've now opened up housing stock to global capital flows and global capital flows have much higher levels of vague gory than domestic flows. if we saw massive swings in the slal val uft dollar relative to other currencies, we would see big changes in the investment flow coming in, either positive or negative. and that tends to accumulate in some places like new york and san francisco or seattle and other places where you get a lot of foreign investment in the housing stock and a lot of volatility on the upside. but that volatility on the upside could evaporate very quickly if, for one reason or another, that capital found its way to some other investment good some place else. and so right now the dollar is the global reserve currency, we're sitting in a very privileged position. a lot of people are looking buns once again at r