Why ALIENS DON'T exist ALIENS explained in Hindi | Abhi and Niyu

In this video,
Abhi and Niyu discuss the possibility of aliens in our universe. Recently Mexico shocked the world by showing a "Mummified Alien", Whether that alien is real or fake - time will tell. The question - are we alone in the universe has been intriguing humans since centuries. But what do we know about aliens? What is Fermi Paradox, Kardashev Scale, and Drake Equation?