The idea of this thread is dictated by a curious situation, however, quite typical for science which has reached an impasse, from which it can no longer get out. Having lost the path of knowledge, physics goes forward at random, not knowing what it is looking for.
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A typical example of such a model of cognition "we do not know what we are looking for, so when we find it, then we will decide whether it is it or not" – the search for dark matter.
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Pretty arbitrarily combining several disparate observations, physicists have come up with a fantastic stuff that is tasked with explaining these observations. And although even in such form it doesn't do this well, they looking for this magic wand in reality.
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Colleague expresses the opinion that increasing entropy will eventually eliminate everything in the universe.
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This is a very interesting opinion indeed.
And first of all, it is interesting in attitude to this problem in modern physics. Modern physics is little shy about this topic.
Because it is very inconvenient not to have a clear answer to a such simple question.
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This question sounds like this: "Will the heat death of the universe occur: yes or no?"
If you ask physicist, he will do everything not to answer. He will discourse a lot, deeply explain, refer to the history and latest research, but you shouldn't expect neither yes nor no.
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Some (few) people are wondering: why is Elon Musk @elonmusk going to send a million people to Mars in the next 40 years, and why is preparing for this with such energy, which (if to leave aside the charm of achievements of this very extraordinary person) is more like a rush?
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@elonmusk We visited the Moon half a century ago and since then have done quite well without far space flights. Is it possible that such a waste of funds and efforts is simply explained by the fact that one enthusiast was carried away by the idea of giving humanity a multi-planetary?
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A fleet of 1000 #Starship, 3 launches per day, difficulties and suffering in flight and in life in the colony, losses ... Expenses with which even the Sahara or Antarctica can turn into a paradise for the same people. And all this for what? Just out of principle, let it be?
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Why does quantum gravity (and, accordingly, graviton) not exist, and all theories professing this idea are fictitious? Because the nature of the gravitational interaction, with all the kinship with the other three (quantized), is still somewhat different.
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Like everything in the information universe, fundamental interactions are the derivatives of the metric of the universe. It is it that determines their number - four - and the basic features of each of them.
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The metric of the universe is determined by the third level of combinations of the beings of the universe (more on this here:
1/19 The compression/static/expansion trilemma is meaningless. It comes from the naive worldly idea of the universe as a certain volume of matter existing in space and time. This idea (the same turtle and three whales) brought cosmology even to such funny absurdity:
2/19 To understand what the universe is, first need to clear yourself of the jumble of absurdities that the BBT has turned cosmology into. Take any theory, and if it has in anamnesis the Doppler interpretation of redshift - forget it, this theory is wrong.
3/19 When you free yourself from childhood mistakes, you will have the opportunity to return to the forgotten source: the content of the concept "universe". The universe is everything. Everything that exists is the inner concepts of it. There are no concepts external to it.
Since the universe is unknowable to the individual, believing is an integral part of consciousness. This applies to scientific consciousness in full.
But scientific belief should not contradict physics.
Belief in aliens is no different from religion: it is just as unscientific, because it contradicts the special theory of relativity.
No movement in the space of the universe can occur faster than the speed of light. This means that neither interstellar travel nor inter-civilization contacts are possible.