For those not in the loop, the Kardashev Scale is a system of measurement invented by Soviet astronomer Nikolai Kardashev in 1964. It quantifies how advanced a civilization is according to how much energy they’re able to harness.
Type 1 civilizations have harnessed 100% of the accessible energy of their own planet. Type 2 has harnessed 100% of the accessible energy in their solar system. Type 3 has harnessed 100% of the accessible energy in their galaxy. There is no official Type 4 but it is conceivable that eventually a civilization could harness 100% of the accessible energy in the universe, and Type 5, which has harnessed all the accessible energy in the multiverse.
That’s some heavy stuff, well beyond the scope of this article. The public’s focus on near term manned spaceflight efforts these days belies a problem with our priorities. Grand, ambitious projects like settling the Moon and Mars grab our attention, while there’s still much left to be done on Earth.
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