Differences are relative, and the concept of difference is somewhat meaningless without reference to a scale. Is an ant and a pencil roughly the same size? Da

Differences are relative, and the concept of difference is somewhat meaningless without reference to a scale. Is an ant and a pencil roughly the same size? Day to day scale, no? But larger scale than that and the importance of the difference increases. Consider an approximation for pi. Even the best approximation is an infinite number of digits off, but we have many that are so good even if we were dealing with resolutions of sub atomic particles at the scale of the universe, our those approximations are more than accurate enough. But if we were dealing with some math questions about the nature of numbers created from pi, even the best approximations are still not good enough to provide answers.