It is a mysterious, but happy and comforting, truth about math. The worth of a thing, either real or perceived, can whistle through the air, and go up a million times. At the same time, value obliteration is constrained and conservative. The price of a product or a stock can whittle down to zero, or lead to a maximum 100 per cent fall. So, while the gains can be infinite, losses are limited. This is possibly the most crucial lesson in wealth creation, and the one that’s never taught.