We often hear this nails-scratching-on-blackboard phrase “Buy low Sell high” until our eyes roll and our skin crawling with goosebumps. There’s truth in it, except that like all aphorism, it’s not as simple as it is. Let’s deconstruct that phrase.

Buy low sell high consists of two parts. Firstly, you have to buy at a low and then you have to sell at a high. But unfortunately, the aphorism didn’t really say what we’re buying at a low. It’s implicitly taken to mean buying at a low price and selling at a high price, but I think it’s not right. Sometimes buying at $2 might not be better than buying at $2.50, especially when taking into account the risk of dropping even lower. It’s better to bottom fish when the mud had settled and the waters become clearer; the chances of fishing a stone that breaks your line is …