Take the largest possible distance, the estimated diameter of the known universe, and divide it by the smallest possible distance, the Planck length. That unfathomably extreme ratio of distances is a number with only sixty digits in it. I want to stress that — only sixty digits. That’s the most we would ever need to express one distance in terms of another. Using more digits than that — say a hundred digits, let alone infinitely many — would be colossal overkill, way more than we would ever need to describe any real distances out there in the material world.
