In centuries past, people hearing the rooster crow as the sun came up decided that the crowing caused the sunrise. It sounds silly now, but every day the experts confuse cause and effect on Wall Street in offering some new explanation for why the market goes up: hemlines are up, a certain conference wins the Super Bowl, the Japanese are unhappy, a trendline has been broken, Republicans will win the election, stocks are “oversold,” etc. When I hear theories like these, I always remember the rooster.