Marks defines cognitive dissonance as the brain's ability to reject information at odds with predisposition.
“cognitive dissonance is something that you should all familiarize yourself with. And it is basically the human brain's ability to reject information which is at odds with its predisposition.”
Marks explains that most investors wreck their records by occasional big losses that take years to recover from.
“most investors, shoot for the stars and occasionally shoot themselves in the foot and wreck their record. And once you have a big loss, it takes a long time to get back to scratch.”