We all feel special when we get into the topic of  Space and Alien. We always look at the Night sky and always wonder what’s there beyond the large Universe.

Is there God, Aliens or Ghost world? We always feel something new when we see how vast our Universe is.

Physicist Enrico Fermi also felt something the same too. He kept asking himself, where is everybody? That’s how Fermi’s paradox appeared today.

What is Fermi’s Paradox about Alien and it’s solution ?

Fermi wasn’t the first person to ask such question about Alien intelligence. But his paradox is well known around the world as the Fermi paradox.

It is typically defined like, if the Universe is deep vast. The probability of intelligent alien life seems almost definite.

But since the Universe is also 14 billion years old, its seems to afford plenty of time for these beings to make themselves know to human. So, well where is everybody?

Night sky seems vast and we can see about 2500 stars roughly 100 millionth of stars are in our Milky way Galaxy.

And almost all of them are less than 1,000 light years away from us or 1% of the diameter of Milky Way.

There are 250 billion ± 150 billion stars in our galaxy and there are roughly 2 trillion galaxies  in the observable universe.

total number of star in observable universe

Observable Universe

Altogether that comes out typically one power 24 total star in the observable universe. Which means that, for every grain of sand on every beach on Earth there are 10,000 stars out there.

Belief on Hypothesis about Alien contact

According to Zoo, The Zoo hypothesis : the assumed behavior and existence of technically advanced life and the reasons they refrain from contacting Earth. 

The hypothesis is that alien life intentionally avoids communication with Earth, and one of its main explanation is that it does so to allow for natural evolution.

For example aliens might choose to allow contact once the human species has passed certain technological, political, or ethical standards.

They might refrain contact until humans force contact to them, possibly by sending a spacecraft to the planets they colonize.

An alien society with advanced technologies may conclude that direct contact with them may result out risk.


Actually they are trying to find humans. And some of them have already did, but they are scared of human despite of their development.

They have to overcome the truth of them and us. Maybe they are still roaming somewhere in the Universe.

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