I'm just an average Joe, though averse to plumbing. But I've known that it would all blow up the moment I saw people taking ARMs while the interests rates were the lowest in history and even interest-only mortgages. I knew it would blow up in their faces when their ARMs would expire the "grace-period" or when they would have to start paying the principal. I just had no idea that it would blow up in my face too (that comes from being a Joe), though my mortgage payment is currently less than what rent would cost.
If I can learn anything from this housing bubble and from the .com bubble, I think is that when people are confident that prices or value can only go in one direction, people stop assessing goods realistically. Rather, wishful thinking about value is the norm. It seems that bubbles have been like this since the tulip frenzy in the
1600s.
It also seems to be the case that bubbles take place with non- productive goods, be them tulips, a piece of software that everyone will want one day, or a house larger than one needs. It's true that economic value is something subjective, but the necessities of life usually trump what is merely to caress one's ego. In other words, goods which can be used to contribute to the economic output are the ones that we will value at the end of the day, ignoring the colors of tulips, the bells and whistles from a computer or the empty spaces of a large cardboard house.
Reality has this thing about kicking in sooner or later, when everyone realizes that the king has no clothes, only to realize that their own clothes are perhaps all they have.
HTH
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