The bombs are falling. The headlines are roaring. The oil price is rocketing, and the stock market is cratering. What should investors do? In times like this, the overwhelming instinct is to act. We see our hard-earned investments marked down. The sea of red on the screen is draining us. We are hard-wired by millennia to react. We have to make it stop. We have to sell. Or do we? As a stock market investor, you have probably invested money that you don’t need for at least five years and maybe much longer. So, the only question that matters is…