The Genesis for this post?

• I read an interesting explanation of this concept by Paul Stovell and thought I would improve upon it by removing the extraneous details to get to the exact pith of the matter.
• I want to simplify the explanation for you. As usual - Wikipedia was only helpful to geniueses like Donald Knuth. I’ve omitted the technical implementation details to focus on what we are trying to do: after you’ve understood that, then you can proceed to destroy some brain cells by trying to peruse the Wikipedia entry on the subject.

Explanation By Analogy: I will always be 5 years older than my sister.