I feel like I've seen this movie before. Not just regarding housing, but also raw land, stocks, commodities, trading cards, tulips, etc. etc. As human beings willingly decide to pay staggeringly higher and higher prices for something, we get peppered with explanations and rationalizations as to how things are "different this time" and we are in a "new paradigm".
The assets and the facts may indeed be different each time, but the human emotions driving and yes compelling people to sign the contracts are the same - fear, pride, greed, envy. Perhaps no asset stirs the emotions more than residential real estate. When you have a market that is comprised of bidding wars with many losers and only one winner per house, the impact on the losers' mentality going into the next "auction" is significant. Contracts get signed at price levels that probably seem crazy to the purchaser, yet they sign anyway.
I have no idea if it's really "different this time", if we we really are in a "new paradigm'". But I am hearing the explanations about why it is, just like every bubble de jour in the past. If I had to bet, I'd say this is just another sequel to the prior Bubble movies, and the ending is going to be pretty similar. Thankfully, I don't have to bet and can just watch this thing with a beer in my hand and my feet up.