The scientific community does not need to be told about the scientific background of the theory of multiple worlds. For an average person such things are perceived as fantasy, because not everyone knows that there is a scientific substantiation of existence of parallel worlds. There are several explanations, among which are the Copenhagen interpretation, Everett's many-worlds interpretation and other similar ones. The bottom line is that the scientific community is studying this issue, so you should not take it lightly. It is better to try to understand how this is possible, how such a thing can be realized.
Many people will be surprised, but a large number of people who adhere to the scientific basis of the universe are convinced that there really exist these parallel worlds, moreover – they are an exact copy of ours. As proof, I will give you quantum teleportation. As not everyone to whom I present my idea understands subtleties of justifications, – I will give detailed explanations.
Let's start with scientific substantiation of methods of cloning, digitalization of memory and existence of other civilizations, which exactly repeat our world. For example, everyone knows about animal cloning and the methodology of fast growing, for example, broiler chickens. In this way, by slightly transforming the technology, it is possible to make human clones. A human can be "created" within a year. The next stage is loading consciousness into him. It seems incredible, but it's much simpler than that. This is achieved by recording the brain radiation and then converting this radiation into a form that affects the chemical reactions in the brain. You say how? Now let's see what is already available.
There is such a topic – about "invisible radiations" constantly emitted by living matter. This is ultra-weak ultraviolet radiation, not only emitted by all cells, but also stimulating their division. Its nature is so mysterious that it has been forgotten because of its obscurity. We will not dwell on it in detail, as I have misspoke, – scientific to scientific. I will only say that already with the help of tomography, using the method of comparison, we study changes in the brain during these or those thought processes. In fact, we study an incomprehensible "foreign language" with the help of examples, comparisons and comparisons. The important thing is that having recorded one state, it is possible to force a reverse process, although in nature, in our life, such things happen all the time. That is, we live this way. The main thing for us is that in this way one brain state is transferred to another. After all, you are not surprised when your thoughts, transformed by you into words (and scientifically – into sound waves), get to the ear, from there to the brain, and there already cause the necessary reactions. You can read about the existence of brain waves, their transmission to devices on the network. For example, you can use your thoughts to type what you are reading. Not with words, but with thoughts. All this is already real.