B Explanations about Kardashev type 1 civilizations

[KingGambit]

TL;DR Summary

Needs explanation about Kardashev I civilization.

[Mentor Note: Two threads on the same basic subject have been merged into this one thread.]

Dear PF Forum,

It's been a long time since I logged in PF, and I hope everybody is in a good health.
Recently I'd like to know what is Kardashev scale type II and III

I mean,
Type 1: All energy from the planet
Type 2: All energy from the sun
Type 3: All energy from the galaxy

So once a civilization reaches type 2, they Dyson sphere their own sun. And I think it just a matter of time that they can copy paste their Dyson sphere too all the stars in their galaxy, right? I mean it doesn't need a technological leap from type 2 to type 3.
What do you think?

Thanks for your attention.

 

[pines-demon]

So once a civilization reaches type 2, they Dyson sphere their own sun. And I think it just a matter of time that they can copy paste their Dyson sphere too all the stars in their galaxy, right? I mean it doesn't need a technological leap from type 2 to type 3.
What do you think?

I agree, maybe it is worth checking what Kardashev and others have said about it. What I can imagine is that it is however an organizational leap. If there is no magical wormhole to jump from a place to another, then you have to held together planetary conglomerates that are kiloparsecs away. This means that any conjoint plans have to be organized millenia in advance. Any disturbance to the plan has to fixed locally at the level of solar systems as there is no way to reach a place fast enough, and the concept of what is happening "now" is completely relativistic.

 

[pines-demon]

However if type 3 is not about making a galatic civilization but about getting more energy, then there are still some challenges. You could imagine extracting energy from the supermassive black hole at the center of the galaxy through the Penrose process.

 

[KingGambit]

Dear PF Forum,

I'm interested with this Kardashev thing.
In Kardashev type I civilization, per Wiki entry Kardashev scale

"A Type I civilization is able to access all the energy available on its planet and store it for consumption. Hypothetically, it should also be able to control natural events such as earthquakes, volcanic eruptions, etc."

What does access all the energy availabe on its planet mean?
Do we have access to all uranium, thorium, deuterium in the ocean, litium for tritium breeding, every fossil fuel, etc?

And what the significant of this? I mean, surely when we already achieve fusion technology, we do have access to all deuterium in the ocean, right?

Or Kardashev 1 is determined by Carl Sagan formula K = (log ₁₀ (P) - 6)/10 which is 10¹⁶ watt.

Thanks for your attention.

 

[DaveC426913]

It is not meant to be specific; it is more a relative thing - at an order of magnitude scale.

On the scale of a K2 civilization, the energy output of a K1 system is chump change.

[ UPDATE ]
"A Type I civilization is usually defined as one that can harness all the energy that reaches its home planet from its parent star (for Earth, this value is about 2×1017 watts)"
https://en.wikipedia.org/wiki/Kardashev_scale#Type_I

Thanks, @pbuk !

 

[pbuk]

What does access all the energy availabe on its planet mean?

The usual interpretation is explained in the Wikipedia article at https://en.wikipedia.org/wiki/Kardashev_scale#Type_I.

 

[KingGambit]

It is not meant to be specific; it is more a relative thing - at an order of magnitude scale.

On the scale of a K2 civilization, the energy output of a K1 system is chump change.

[ UPDATE ]
"A Type I civilization is usually defined as one that can harness all the energy that reaches its home planet from its parent star (for Earth, this value is about 2×1017 watts)"
https://en.wikipedia.org/wiki/Kardashev_scale#Type_I

Thanks, @pbuk !

Ahh, this link is more elaborated. Thanks.

 

[pinball1970]

An article here with a paper link regarding a possible advanced civilization Energy signature.

https://phys.org/news/2024-12-technosignature-extraterrestrial-civilization-reliance-nuclear.html

And this a few days ago on Dyson rings

https://phys.org/news/2024-12-technique-dyson-unveiled.html