Exoplanets and Fermi paradox: can we ever get an answer from other civilizations?

   In philosophy, the creature or object does not exist until we mention it. The existence is not black and white. It's like the grey spectrum under the drawing program.  The white is the position where we do not even mention the object. Then the scale goes to black through the levels of grey. Those levels are that we mention the object, discuss it, and then take images or other documents about it. And then the black is the fully proven evidence of the thing. The knowledge or even hypothesis makes the object exist.  So do alien civilizations exist or not? That is one of the greatest mysteries in the universe. Alien civilizations do not exist until we find evidence about their existence. But if we don't see alien civilizations or keep in contact with them daily, that doesn't make them non-existent. Civilization is real if it exists. And then it can exist 10,000 ly away from us.  That means we ever can make contact with them. Or do we? We all wait for the day when hypothetica

Until we find another civilization, we are alone. And then, we must realize that maybe we want to be alone. Aliens do not exist until we find them. Knowledge makes them exist. And when they turn into real, we cannot turn them non-existing. We are lucky because we live in the place between the spiral branch of the Milky Way. If civilization lives in a spiral branch, there are lots of cosmic objects that can hit their planet. One large asteroid can destroy that planet.  Many catastrophes modified evolution on Earth. Catastrophes are important for evolution. Without catastrophes, only a large number of descendants is necessary for species survivability. Mass extinctions and climate changes on Earth caused that species to need big brains and high-level intelligence so that they could find food.  Then the motive is needed to make the technical inventions. That means intelligence alone doesn't mean that species can create technical tools. They need motivation to make those things, that a

"The first generation of stars fundamentally changed the universe by fusing simple elements like hydrogen and helium into more complex ones within their cores, scattering these elements across space upon their death—elements that are now part of the Earth and living beings. Recently, scientists discovered a second-generation star from another galaxy, offering unique insights into the early elemental formation processes in galaxies beyond the Milky Way." (Wikipedia, Cosmic Oddity: Rare Second-Gen Star Found Beyond the Milky Way) The old star is the thing that opens our knowledge of stellar formation. This scarce star formed from the first generation star's remnants. The particles that formed this second-generation star are from the first stars in the universe. That thing makes this distant star very interesting.  And it can broaden our knowledge about star formation. The old star in the Large Magellanic Cloud can also mean that there are other old stars in that galaxy. The

This is writing about the most advanced and hypothetical versions of the Kardashev scale civilizations. The civilization would be so advanced that it's hard to imagine. But those kinds of things are good thinking experiments. If you don't know what is the Kardashev scale, you can check it from the link below this text.  When we think about the Kardashev scale and the hypothetical civilizations sometimes people ask, what is the final level? What is the last step that civilization can reach? What kind of civilization and alien would be the omega-alien? A creature that cannot develop anything, because it created all technology, that is possible.  The civilization that reaches the final step in advance is the Kardashev scale 8. The creature might use nanotechnical antimatter mitochondria to create so-high energy levels, that they can manipulate space, dimensions, and time. This thing means that the creature would be like some kind of Superman.  The Kardashev scale eight civilizatio

The self-replicating Von Neumann probe can look like this. The system pulls material into the craft. The manufacturing system melts the material and then separates elements using centrifugal systems. Then it can drive those materials into the 3D printers. The system can create auxiliary robots that act like spaceborne quadcopters. That means that the system can create a copy of itself.  AI can seem very wise. But the thing that is behind AI is just mathematics and the mathematical model. That can calculate the matches in texts with orders that the user gave to it. There is a model, where robot sensors see problems, and then the robot asks the AI for assistance to those problems.  In that model, the robot says data to the language model, and then says "I have a problem solve it". When a robot sees mountains, it can ask the AI which can be the neural network how it can go over that mountain. Then the AI creates an answer. Maybe it orders 3D printers to create quadcopters. That

Intelligent lifeforms do not always develop interstellar technology.  Fermi's paradox: all lifeforms are not intelligent. Intelligent lifeforms do not always develop interstellar technology. And we are alone until the alien answers.  Drake's equation and Fermi's paradox are interesting questions. And at this point, I must say that everything. That is written about aliens is purely hypothetical. Somebody says there are 20,000 intelligent lifeforms in our galaxy. And that is far too much. The new suggestion is that there are four alien civilizations per 10,000 galaxies. That means the intelligent life would be rarer than we even imagine. And we are alone until aliens contact us.  All lifeforms are not intelligent.  And all intelligent lifeforms are not forming civilizations.  And all intelligent civilizations are not developing interstellar technology.  The birth of life is a complicated thing. The birth of intelligent life is more complicated. There must be something, that m