[mbenjaminsmith]

They're hedging. They even go as far as to say "you heard it here first". I'm sure they would rather be in a position of being overly cautious than have people lose faith because they didn't report on a coming bubble.

In terms of actual analysis, they're falling into the trap all other journalists seem to be by just repeating the bubble rumors that are floating around. You'd think Economist could come up with more substance for their argument.