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The Kardashev Scale
A Type I civilization can muster an amount of energy equivalent to the total energy output of the Earth. Based on his estimates, the energy output of the Earth is about 10^15 to 10^16 watts.
A Type II civilization can marshal the energy equivalent to the output of a typical star - 10^26 watts.
A Type III civilization's communication energy can reach 10^36 watts, approximately equal to the energy output of a galaxy.
Civilization on Earth is currently about Type 0.7 not even a full Type I.
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MORE IDEAS ON THIS
If he finds other life another hunter, an angel or a demon, a delicate infant or a tottering old man, a fairy or a demigod—there’s only one thing he can do: open fire and eliminate them. In this forest, hell is other people. An eternal threat that any life that exposes...
- LIU CIXIN
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72 reads
Dividing civilizations
Soviet astrophysicist Nicolai Kardashev once proposed that we can divide civilizations into three types based on the power they can command for communication purposes, let's say.
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88 reads
Emptiness is not nothingness
And to attain that state, you need to empty yourself.
I said, "I'm empty enough. Fame and fortune are nothing to me. Many of the monks in this temple are worldlier than me."
The abbot shook his head and said,
"No, emptiness is not nothingne...
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66 reads
The universe is a dark forest. Every civilization is an armed hunter stalking through the trees like a ghost, gently pushing aside branches that block the path and trying to tread without sound. Even breathing is done with care. The hunter has to be careful, because ev...
- LIU CIXIN
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158 reads
CURATED FROM
IDEAS CURATED BY
Interesting that I’ve found this book as a side note in “The denial of death” by Ernest Becker. Didn’t expect something from it, and for sure didn’t expect it to grab my attention at all. Unquestionably an enthralling book, first of the “Remembrance of Earth’s past” trilogy. I would recommend it to anyone who dares to imagine beyond our existence.
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Other curated ideas on this topic:
The standard candle method
If we know the intrinsic brightness of an object in space - that is, how bright an object really is - then we can estimate its distance from how bright it appears to us from Earth.
- One type of standard candle is a 'Cepheid variable'. Cepheid variables are a...
The Crater’s ‘Peak Ring’
A vertical ‘sploosh’ results from an impact with an asteroid, with the earth rising at 1000 miles per hour to create mountains taller than Mt. Everest, only to instantly collapse due to continuous explosions, leaving behind a ring known as the ‘Peak Ring’.
The impact’s energy measurement i...
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