Imagine any given day. There are so many ways to describe this event. You can describe it as the time it takes for the Sun to return to the same point in the sky. You can describe it in hours (24), or minutes (1440), or even seconds (86400). Zooming out further, a day can be just a seventh of a week, or a small portion of a month or a year. It’s all a question of perspective.
When something goes wrong, it’s easy to to point to reasons why you did not perform to your expectation. In fact, the tendency I’ve seen is that the more you look for reasons, the more you will find them. This is one of our classic mental weaknesses. We search for the data that confirms our suspicions, while dismissing the rest as inconsequential or “noise”. What we’ve done, in essence, is create a situation in which we believe we already know the answer, before we’ve objectively found it.