Fermi Paradox: Where is Everyone?

Are we the only living beings in the entire Universe? This is a bizarre question itself.

The observable universe is about 90 billion light-years in diameter consisting of 1000 billion galaxies with billions of stars in them. Recently we have learned that planets are very common. There are probably trillions and trillions of planets in this Universe which means there should be lots of opportunities for life to exist and develop right. But where is it?

Fermi Paradox questions the existence of any intelligent extraterrestrial life. So, Where are the Aliens? Since the whole Universe is so big and even with small assumptions, there are still millions of planets that can harbor life as we know it. But we haven't found any evidence of it yet!

GREAT FILTERS

Are there any great filters that are acting as barriers? The great filter can be divided into two sections. The one which we have crossed already, which means we are one of the first intelligent civilizations. These can be like the protein-synthesis process for a multicellular being that can be a very complex process that only happens very rarely and need some precise conditions to occur. So, Congratulations! We are the first intelligent civilizations and most likely to expand throughout this galaxy in about a million years which is pretty good news for us.