Yes, Houses and estates increase in prices everywhere in the world, so if somehow there is a crash in the industry of some country, we simply invest in another where is a rising or in a healthy position, it will always rise somewhere, so we have a safe place to hold investments, because REAL work internationally, not just one country, where the risk to recuperate from a crash is very high.
Except that to invest in a new rising object you need either to sell an old falling object at a loss, or put in new money. As with every investment, selling at the right time is how you make money.