There is no death in the quantum world.

There is a standard model of confirmed elementary particles above this text. There are two types of particle groups, fermions, and bosons. 

Fermions, like quarks, and electrons form material, like protons, and neutrons.   And bosons are force carriers. Every boson carries one of four fundamental forces. Or their counter force. 

W and Z bosons carry weak nuclear force for example. The thing that makes Higgs boson interesting is that it should be a force carrier. But there is no force that the Higgs boson carries. And that's why it's put under the highlight "Scalar bosons". So Higgs boson scales other forces... But that will be another story. 

Information never vanishes. This is the reason why quantum eraser is impossible. A Quantum eraser erases information, but that thing is impossible. The quantum cutter is the system that cuts information into pieces. But a quantum cutter or quantum clipper can just transform the information into smaller parts. The idea is simple we can take things like DVDs and cut them into small pieces. But if we have enough time and the right equipment we can restore those pieces to their original form. That means we cut information to pieces but we didn't destroy it.

Term death means that the thing turns meaningless to the quantum system. When we are thinking about information itself the death of the information means that information just vanishes. But the fact is that we cannot destroy information itself. When we are destroying things like DVDs there might be information that the DVD is destroyed. There is an empty place in the place, where that DVD was. The plastic bites tell that somebody destroyed the DVD. And maybe somebody asks the reason for that. 

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Information about the cat remains forever.

Pauli exclusion principle says that there are no two identical fermions in the same quantum system. And because the universe is one large quantum system, there are no two identical fermions in the universe. 

So, the fermions that are forming that individual cats are different than other fermions. That means it is the theoretical possibility that researchers can track those particles and put the cat to its original form again. Because every fermion is different. That thing means that the cat could theoretically be put back to its original form. 

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If we are thinking about the universe where energy travels from one quantum system to another we must understand one thing. Every particle interacts with other particles and their environment. When a giant and a bright star explodes it leaves remnant after it. The interplanetary nebulas neutron stars and black holes are the things that are remembering us that there was once a star. Those remnants are the brightest things in the universe. 

So in the quantum world and the information, the cat cannot die. The cat is in superposition and it's the same time living and dead cannot die. The information about the cat stays forever. If something happens to a cat that means it's not in its normal place. Somebody asks, where is the cat? And that means cat still has some kind of effect on their environment. 

There is the possibility that the cat's body fell in the yard well, where the entire community takes their drinking water. Or maybe that cat ate some kind of poison, and if there is that kind of poison there is the possibility that other cats are also eating that poison. This thing is an example of how one cat can cause a very big effect. Even the cat itself is not in place or visible. 

Pauli exclusion principle guarantees that all fermions are different. In the quantum system is no two identical fermions. And because the universe is one big quantum system there are no two identical fermions in the entire universe. 

There is a theoretical possibility that researchers can find particles that formed the cat and return that cat to its original form. The information about that cat remains forever. Why I'm saying that? Well, there were atoms and elementary particles that formed our cat. Cat loaded energy to those particles when it lived. So the energy level of those particles is different than all other particles. 

https://curiosityanddarkmatter.home.blog/2022/08/19/there-is-no-death-in-the-quantum-world/

https://informationnevervanishes.blogspot.com/2022/08/there-is-no-death-in-quantum-world.html