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The heavens are silent. Why?
For a long time scientists like Stephen Hawking and Carl Sagan, believed that one day people will start to colonize the universe. But how to implement it, why do we have to want it, and why we do not see any evidence of life, other than us? Can we expect to rule over the universe?
The latest science Dr. Stuart Armstrong and Dr. Anders Sandberg Institute for the Future of Humanity at the University of Oxford are trying to answer this question. As a starting point adopted the Fermi paradox – the difference between the probability of the existence of intelligent extraterrestrial life, and the lack of observable data supporting the existence of it.
Dr. Armstrong notes:
“There are two different ways of looking at our work. The first is to explore our future – mankind may at some point to colonize the universe. The second relates to the extraterrestrial species – given the relative ease of crossing the galaxy, it emphasizes the mystery of the lack of evidence of intelligent life. Fermi’s paradox is not going to benefit. ”
The paradox, named after physicist Enrico Fermi, seriously interested in the physics of the future, according to Armstrong. Dr. Sandberg explains:
“Why does our institution is experiencing a Fermi paradox? Well, the silence in the sky tell us about any intellectual activity in the universe. In space, no little green men, and it can say very different things about intelligent life – it can be quite rare, it can be hidden or it is very easy to die. Of course, it may also indicate that it is not. If humanity is alone in the universe, we have a huge moral responsibility. After all, we are, in fact, are the only reason that will decide the fate of the whole world. ”
Perhaps our technology is too primitive to search for extraterrestrials. Perhaps our hunting methods are not too successful.
According to Armstrong, one possible explanation for the Fermi paradox is that life destroys itself before the ability to spread. “So, we are facing more serious risk than they think. It is necessary to take care of the future of humanity. ”
Sandberg added, “Almost any answer to the Fermi paradox raises some inconveniences. There is also the theory that many planets with life are roughly at the same stage as we do – this is called synchronization – in terms of research capabilities of the universe, but personally I do not think so. ”
We know that there are planets is much older than the Earth – even most of them, to be exact. In many cases – for billions of years.
Sandberg says that in the early 90’s, we assumed that we would find not so many planets, but now know that the universe is literally teeming with planets :
“If we want to go to a distant galaxy to colonize a planet, under ideal circumstances, it would have cost to send the rocket that will slow down as the arrival. But the universe is constantly expanding , which makes the calculations quite a challenge. In our work, we have combined a number of mathematical and physical tools to solve this problem. ”
Scientists have shown that under certain operating conditions (eg, advanced automation or basic artificial intelligence that can replicate itself), it would be advisable to build a Dyson sphere, which would have caught the energy of the sun and would simplify the wave intergalactic colonization. The process could begin in an incredibly short time.
But why civilization wants to expand the horizons of their possessions? And on that score, Armstrong has the answer:
“One of the reasons for expansion may be as follows: a certain subgroup aims to isolate themselves for ideological reasons. But in this case, it may be a problem with the central civilization that wants to prevent this type of expansion. The best way – to get there first. Advantage – the best reason for expansion. ”
“Let’s slippery race of space aliens in the universe wants to turn the large parking lot and sell advertising space – Other unlikely to allow it. There may be many good reasons for expanding holdings in any species, even if they do not care or colonization of world domination. ”
Finally, the scientist brings the final line:
“We believe that if any of the civilizations elsewhere in the past wanted to expand, it would have turned on a huge plot of the universe. This makes the question more sharply Fermi – a billion times. If intelligent life – a rare occurrence, it should be less than one civilization in the galaxy. And if the advanced civilization in no hurry to colonize other planets, this trend should remain strong for billions of years and billions of galaxies. Think out for yourself. We do not have the answer to all these questions, but we know that things are much more complicated than previously thought. ”
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Tags: Extraterrestrial life , the universe , aliens .
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