If you overlook this particular dynamic in trading and investing, you're going to experience failure. There's a couple of reasons for this and neither of them in the big picture is going to work out well. With that being said, this is where the irony of the problem arises because it develops from a "big picture" horizon of time. This is also where additional irony comes into play because as traders and investors we need to be patient and allow consistency to add up over larger horizons of time. This all sounds fine and dandy (and it is in theory), but in reality, these things will work against you and cause pain. Let's make sure you are well aware of this thought process so you are not caught off guard.