Charlie Munger has a unique way of describing the errors of our ways. These “errors” can be simply described as human nature.
And yet, overconfidence has a funny way of making people believe they’re immune to these errors. Somehow, they’re the exception to the rule.
In an article, Murger wrote about the perils overconfidence can have on something as simple as higher costs on average returns. This was in relation to foundations taking on more costly consultants for investment advice, but it’s certainly not limited to the professionals.
Everyone deals with these same issues in (and outside of) investing: Continue Reading…

George Charles Selden believed that market prices were driven by the mental attitudes of investors. So in 1912, he wrote