People save and invest for many reasons. For the sake of argument, let’s assume we’re investing for the long-term to accumulate a pot – usually a pension pot – to draw down in retirement.  Before we start the drawdown, the two key questions that we face are: What assets should the pot hold? What percentage of the pot should we draw down each year? Of course, these questions have been asked many times. And there are many answers. But the more volatile the times, the more helpful it is to ponder them.  As the father of modern portfolio theory, Harry…