Are investors worse than animals ?

It seems so :

http://www.telegraph.co.uk/news/newstopics/howaboutthat/5988799/Parrot-beats-investors-in-South-Korean-stock-market-contest.html

What strucks me is the last sentence :
"Our experiment proved that making long-term investments in blue chips is safe and effective," Mr Chung said.

This experiment just confirms that "Economists/Inverstors are people who explain you today why they have failed yesterday"