You’d expect investing in stocks to be more thrilling than it actually is. In practice, good investors put their money into boring index funds. They don’t trade individual companies, don’t trade in or out when the economy changes. The disciplined ones don’t even check the value of their pot more than once a year. It’s all a bit bloodless. Then there’s the tribe of stock market investors who like to roll their sleeves up and get stuck in. They treat stock market investment more like gambling on the horses. They swap tips and trade like mad. Their brokers do well…