This is actually BS. SEVERAL people alerted to the housing bubble. There are currently a couple of Housing Bubbles going on around the world right now. They are being "responded to" with the same BS as in the US, that "this time it's different" or "prices never go down". Complete and utter BS
There were MANY warnings. The idea that a certain thing can/will always increase in value is so ridiculous yet so common.
How do you identify a housing bubble? Rent/Price ratio, variation in price per area (m2 or ft2) compared to inflation. Mortgage terms going up.