stockmarket charts: how safe are index funds, anyway?

Beware of Geeks Bearing Formulas

The history of finance is a history of brains dashed on the pavement. The fact that many people tend to be ‘irrationally’ wary of the markets starts to take on a new significance: the suspicious folk-wisdom has often been correct, while the ‘experts’ have consistently been dangerously wrong.

Hence Warren Buffett’s warning: beware of geeks bearing formulas…