Only a big damn nerd would know that the Kardashev Scale is a hypothetical measurement of a spacegoing civilization’s energy potential. Theorized by Soviet astronomer Nikolai Kardashev in 1964, it posits that a civilization might fall into one of three levels, either harnessing the energy output of their entire planet (type-I), planetary system (type-II), or host galaxy (type-III). The concept plays a minor but pivotal role in Liu Cixin’s The Three-Body Problem. If you don’t remember that part, it’s when Ye Wenjie figures out she can bounce a signal off the sun, effectively granting our sub-type-I species the communications potential of a type-II civilization. Spoiler alert.

Like I said: big damn nerds.

Stephen Avery and Eugene Bryant’s Kardashev Scale might also appeal to big damn nerds. But probably more because they’re hopping up and down at the sight of a board game entitled Kardashev Scale than because it’s any good.

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