Six Different Types of Civilizations
by Wes Penre
In 1964, the Russian astronomer, Nikolai Kardashev, constructed something he called "The Kardashev Scale". It puts energy consumption of an entire cosmic civilization in perspective, so that we hopefully, when face-to-face or mind-to-mind with an alien species, relatively quickly can see how advanced they are. The scale is theoretical and can't be 100% reliable, but it works as a pretty good guideline.
His scale consists of three different categories of civilizations; Type I, Type II, and Type III, which are based on how much usable energy a civilization has at its disposal, and their degree of space colonization. In summary, a Type I civilization masters the resources of its own planet, a Type II of its solar system, and a Type III of its galaxy. [Read more] ...