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by jlmendezbonini 3884 days ago
For those equality puzzled about what akiselev meant by Type II / III civilizations, it comes from the Kardashev scale:

"The Kardashev scale is a method of measuring a civilization's level of technological advancement, based on the amount of energy a civilization is able to utilize.[1] The scale has three designated categories called Type I, II, and III. A Type I civilization uses only resources available on its home planet, Type II harnesses all needed energy from its local star, and Type III of its galaxy."

https://en.wikipedia.org/wiki/Kardashev_scale