The circumstances are always changing, but successful investors look beyond the present situation.Everyone likely knows that something is up with the U.S. economy -- it's a major talking point for the upcoming presidential election. That said, it's hard to say what exactly is happening. But Dollar General (DG -0.57%) CEO Todd Vasos believes he has a better idea than most.On Aug. 29, Dollar General reported its financial results for the second quarter of 2024, and Vasos went into finer detail than usual to d ...