Fermi Paradox - Why We are not Alone!
322🌎 Get Our Merch designed with ❤ https://www.youtube.com/channel/UCNYaxPiba3oxmeL_3jKxnYA/store
💫Get 10% off Under Lucky Stars and enjoy our star maps completely custom-made 💫 https://www.underluckystars.com/INSANECURIOSITY
Don't miss the counterpart: Why We Are Alone! https://youtu.be/eUFSLLKUX34
Commercial Purposes ► Lorenzovareseaziendale@gmail.com
Our New Website ► https://insanecuriosity.com/
- -
The stars are too far away!
As far as we know, we have always been alone. No one has ever called us, no one has ever come to visit our planet...
Yet our galaxy is full of stars, each with its planetary system. Surely billions of celestial bodies suitable to host elementary life forms, thousands of sentient beings wandering around, and perhaps dozens of civilizations that have pushed or are trying to push themselves into space.
But if that is the case, why didn't they come, why didn't they call us? Where is everyone?
The Italian physicist Enrico Fermi was the first to ask this question, in 1950, and since then scientists have proposed a great number of solutions to the paradox that bears his name. One of the best-known came from Sagan himself, who said in an article in 1981 that we just had to be patient. No one has visited us because they are all too far away; because a species intelligent enough to invent interstellar journeys evolves, it takes time, and more time for that species to spread in so many worlds. Some say that species with good technological abilities, when they emerge, then self-destruct quickly. Others suggest that aliens may have visited us in the past, or that they are avoiding us on purpose. Perhaps the most pessimistic response is contained in an article in 1975, in which astrophysicist Michael Hart declared that the only plausible reason why no wave of colonization has reached us is that there is no one out there.
The question of how easily (and quickly) the galaxy can be colonized has played a central role in attempts to solve the Fermi paradox. It has been calculated by the Italian physicist himself and then by others that a single space species could populate the galaxy in a few million years. And if we have no evidence of this, according to Hart it simply means that such civilizations do not exist.
In the article "There is no Fermi Paradox", physicist Robert Freitas did not hesitate to define Fermi and Hart's reasoning as "a real nonsense", and to compare their logic to that which supports such a discourse: "Lemmings - small hamster-like rodents - reproduce rapidly, at a rate of about three litters per year and up to eight pups per litter. It has thus been calculated that in very few years the total mass of lemmings should equal the mass of the entire Earth's biosphere. The Earth should then be covered by it... But most of us don't even notice their existence. Have you ever seen a lemming? “.
"If You happen to see any content that is yours, and we didn't give credit in the right manner please let us know at Lorenzovareseaziendale@gmail.com and we will correct it immediately"
"Some of our visual content is under an Attribution-ShareAlike license. (https://creativecommons.org/licenses/) in its different versions such as 1.0, 2.0, 3,0, and 4.0 – permitting commercial sharing with attribution given in each picture accordingly in the video."
Credits: Ron Miller, Mark A. Garlick / MarkGarlick.com
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/ESA/ESO/ Flickr
00:00 Intro
3:30 Slingshot effect
10:03 The great silence
#insanecuriosity #wearenotalone #fermiparadox