realistic or no?

[ninjastockman]

Found this on a msg board and found the analysis interesting but is it realistic that we can pull back that much if a real recession hits?

http://www.geocities.com/WallStreet/Exchange/9807/Charts/SP500/Dji200_0710.gif

 

[nazzdack]

Touching the upper trendline leads to a retracement back down to the lower trendline within 20 years? History may repeat. We'll see.