The Greatest Bubble Ever

During the 40 months after Alan Greenspan’s infamous “irrational exuberance” speech in December 1996, the NASDAQ 100 index rose from 830 to 4585 or by 450%. But the perma-bulls said not to worry: This time is different—-it’s a new age of technology miracles that will change the laws of finance forever.

It wasn’t. The market cracked in April 2000 and did not stop plunging until the NASDAQ 100 index hit 815 in early October 2002. During those heart-stopping 30 months of free-fall, all the gains...