CA
This is from the conclusion from your link:
"Ironically, today's market commentators are exuberantly bullish for 2006, nearly unanimously declaring this to be a wonderful time to buy and hold for the long term in both domestic and international markets. The events of the Nikkei and the strikingly similar progression thus far on the DJW paint a much less enthusiastic picture: that their capital may instead be at greatest risk."
When everyone's shouting Buy and the markets at the top, could be the best time to do the oppposite!