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... hnology levels are low, the Kardashev civilizations classification is relatively adaptable.
However, when technology level exceeds a certain limit, the class gap between civilizations cannot be simply measured by the amount of energy used.
For example, humans, if humans were to invent the Dyson membrane and then fall into an eternal technological bottleneck with no further progress, as long as Earthlings are given time, they can still spread their footprints throughout the Milky ...
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