“At particular times a great deal of stupid people have a great deal of stupid money. . . At intervals. . . the money of these people – the blind capital, as we call it, of the country – is particularly large and craving; it seeks for someone to devour it, and there is a ‘plethora’; it finds someone, and there is ‘speculation’; it is devoured, and there is ‘panic’.” Walter Bagehot.