A Type 0 or K0 civilization extracts its energy, information and raw-materials initially from crude organic-based sources (i.e. food/wood/fossil fuel); pressures via natural disasters, resource exhaustion, and widespread societal collapse create extreme (99.9%) risk of extinction. Goes through agricultural and industrial revolutions and is eventually capable of advanced computing and orbital spaceflight. 21st-century humans are a Type 0 civilization.

A Type I or K1 civilization has mastered all the energy available to their home planet, available from a neighboring star. It extracts its energy, information, and raw materials from fission and fusion power, and renewable resources; is capable of interplanetary spaceflight and communication; mega-scale planetary engineering; medical breakthroughs to eliminate disease and slow ageing; multiplanetary government and interplanetary trade; species is tech augmented; but is still vulnerable to extinction.

A Type II or K2 civilization has control over their solar system, and may be able to harness the power equivalent of a single star. It extracts fusion energy, information, and raw-materials from multiple solar systems; it is capable of evolutionary intervention, interstellar travel, interstellar communication, stellar engineering, terraforming, and star cluster-scale influence; the resulting proliferation and diversification may negate the probability of extinction. Complete control of the fate of its home planet where threats like ice ages and global warming can be avoided. A possible utopian outcome on the low to mid end of the K-scale is the Dyson Sphere, a hollow gigantic shell with a surface area equivalent to millions of Earths that can fully enclose the Sun and capture all of its solar energy output. Under the direction of a Godlike superintelligence, huge numbers of automated, self-replicating ships can build it using material from the asteroid belt, the Kuiper Belt, and the Oort Cloud. The interior walls will have a gravitational field similar to Earth's and will use magmatter to withstand the immense tensile forces required to maintain structural integrity. Portions of this sphere have stable atmospheres, oceans, and landmasses, and are a habitat for many sapient lifeforms, including biological humans, transhumans, aliens, and androids. With digital immortality, many humans live in massive, hyper-realistic simulations. Others are using synthetic and biological bodies created for them in the physical world using advanced versions of nanotechnology and programmable matter. Mars has been terraformed into a planet that's able to support a wide variety of animal and plant life. Biological humans walk on the surface of Mars without spacesuits. Mars is now another home, effectively becoming a backup for mankind. After Mars, Venus is terraformed. Venus is now a habitable, Earth-like planet. Its entire orbit was shifted further away from the Sun to bring it closer to the Goldilocks Zone where biological life is able to exist at stable temperatures. Comets made of ice were redirected from the Oort Cloud and the Kuiper Belt into the upper atmosphere of Venus, releasing vast quantities of water. Carbon dioxide was captured and removed in Venus's atmosphere by dispersing nanobots to absorb carbon dioxide and other toxic gases and replace them with breathable air. The high end of the K-scale would be a hybrid galactic culture, with millions of cooperating worlds in a galactic community. Poetically, this would be a mammoth archipelago of solar system societies, a multitude of civilized islands separated by the vastness of the oceans of space. A dystopian path is also possible. Aggressive and ruthless expansion could lead to an uncontrolled sprawl far beyond any form of functional government, regressing into societal collapse and eventually a form of interstellar barbarism with little regard for life.

A Type III civilization extracts fusion and exotic energy, information, and raw-materials from their galaxy. It is capable of intergalactic travel via wormholes, intergalactic communication via subspace, galactic engineering and galaxy-scale influence. Such galactic traversers with supreme access to energy results in them evading extinction, as they would be spread too far. Thousands or even millions of years of evolution - both biological and mechanical - may result in something completely different from their Type 0 roots. They may be AI god-like superintelligences having gone through multiple stages of singularity, exceeding a level 7 AI by far. Androids, cyborgs and humans may all be relegated to being sub-species in a highly advanced galactic society. The biological humans would likely be seen as being inferior or unevolved by their AI counterparts, and a hopeful scenario is that imaginative humans would have found a way to co-exist with their AI masters to keep them benevolent in a cooperative and mutually beneficial society. It is also possible that humans would have been eradicated during a malevolent stage of AI evolution, making the new race superior in many ways. It's also possible that humans will now have ascended into beings of pure energy, able to control and direct machines to carry out expansionist work. Colonies of robots or AI sub-species that are capable of self replication will spread out across the galaxy, colonizing star after star. They will be able to digitize and enable all matter (from asteroids to planets) they come across, making everything 'alive' and part of their galactic network. They will build Dyson spheres to encapsulate each star, carrying excess energy to vital nodes in the network. By now, various methods of instantaneous faster-than-light travel are employed both for communication as well as mobility. A Type III civilization could extract energy from a supermassive black hole. This captured energy could meet the extraordinary needs of a civilization that requires up to 1046 W/s. The energy would be captured in the form of radiation emitted by the matter rushing into the star, by means of collectors located within the accretion disk (similar to Dyson spheres). The overflow, as well as the waste of the civilization, would be redirected towards the black hole. A fraction of this energy, directed as a high-powered beam, could be useful for space travel. A galactic club of civilizations could transmit the energy through networks within the galaxy. Within the various central power stations that make up the network, power transmission is periodically switched between transmitter and receiver, according to the galactic rotation. To be efficient, this network should be located at the center of the galaxy. This is the final type of civilization in the original proposal of the Kardashev Scale.

How can they destroy this great islands.

Human nature unfortunately

Because they are trying to save you.

Religion is just a vessel through which humanity manifests itself

I think a large part of any religious subscription involves "spreading the word". This ensures more followers (aka influence) and more followers equals more donations (aka dollar dollar bills y'all)

@@frazlaz Yeah but this is like someone that you don't like going to your house and start trying to convert you to something. Plus how is he supposed to convert them if they cant speak any other language than their own?

Some humans never learn and pay for it.