"Millions of people out there still bear the psychic scars of buying gold at $800/oz in 1980 or a tech stock at 1,000 times earnings in 1999 or a Miami condo for $1,000 per square foot in 2006.

Today's bubble will leave some similar marks. But where those previous bubbles were narrowly focused on a single asset class, this one is so broad-based that the hangover is likely to be epic in both scope and cumulative embarrassment."