Comment by linzhangrun

Mathematically, this is based on the assumption of the infinite and the continuous. However, quantum mechanics tells us that the world should be finite and discrete. Therefore, measuring the coastline of England naturally has nothing to do with limits. Of course, in practice, infinite measurement precision (not to mention the uncertainty principle) is impossible, so obtaining the "accurate" length of England's coastline—at least within the current framework of physics—is impossible, but that is another issue.