Réponse :
Hello everyone!
Today, I will try to do my best to answer the following question : Do Aliens really exist ?
That question has been asked by many of the population, essentially because of all those who said they had been captured by Aliens.
And so, I present to you, the Fermi paradox:
“If aliens were real, their representatives should already be with us. Where are they then? "
Fermi's question - raised before him by Constantin Tsiolkovski - is rediscovered by Carl Sagan in 1966, then is explicitly formulated by engineer David Viewing in 1975. The same year, Michael H. Hart formulates several hypotheses aimed at resolving the paradox, classified into three categories:
-it may be because the probability of an advanced civilization appearing is very low, therefore, a universe, the size of ours, is needed for it to have a chance of occurring once (but much less likely twice).
-it may be that aliens exist but, for one reason or another, interstellar communication and travel are impossible or not considered desirable.
-life may exist elsewhere, but in places that make it difficult to detect - for example in oceans protected by a layer of ice, organized around hydrothermal vents.
In conclusion, we do not know if "aliens" are real or not. But I do not think the ovnis are real. Maybe there is life out there, but they clearly haven't contacted us yet.