Why do you claim there are 9999 aliens

(1)Ep. 179 Astronomers Looking for Aliens That Happened to the World
(2)You Quiz!
(3)Do you believe in aliens
(4)Do you think so
(5)Common sense is that in this vast universe
(6)It’s a bit… It’s a bit
(7)Episode 179: Oh, my God. That’s not happening
(8)Astronomers looking for aliens
(9)Myunghyun. That’s exactly how scientists think
(10)Scientists make probable deductions
(11)Hundreds of billions of solar systems
(12)It forms our galaxy
(13)Episode 179: Oh, my God. That’s not happening
(14)It’s 1 trillion to 2 trillion won that these galaxies are known
(15)If you think about it normally
(16)There must be aliens
(17)Episode 179: Oh, my God. That’s not happening
(18)There are 100 aliens!
(19)100 is too much
(20)99999999 is here
(21)Astronomer, Dr. Lee Myung Hyun, who appeared on U Quiz
(22)When the solar system we live in gathers hundreds of billions, our galaxy
(23)The galaxies that are now known are 1 trillion to 2 trillion shells
(24)They say it doesn’t make sense that only humans live in this universe