The discussion below says it all:

I came across the following in Pagy’s code base:

Simple is best, especially if you get benefit, without loss:

Why bother understanding the peer to peer mechanism?

This is my own summary, notes, thoughts on the book - I have added what I thought was important and elided other things, because I didn’t need to note it down. If you are interested in reading the original source - do yourself a favour and purchase it: it’s just $12 on Amazon Australia - or search for “7 Powers: The Foundations of Business Strategy” by Hamilton Helmer and get it an any bookstore. It is a reasonable cost, to help you determine/understand where you are going to devote years of your life. Why sink it in unprofiable ventures?

Pre-requisites

In order to properly understand this article you will need to understand:

Pop Quiz: Consider the code below, and ask: where is the variable ‘greeting’ defined?