astronomy_lover: earth simply doesn't exists because at the other side of universe which is 5 billion light years far away from us , for the civilization existing there , we doesn't exists
tell me if you understood63 months ago
Genius1: hmm,It's like taking ratio between age of our planet or Universe and average human age. As the age of this universe is approximately 13+ billion years and average human age is 60-70 years,means our lifespan is just like a small friction of second if we suppose age of the universe in years,inshort we are neglectable as compair to the whole Universe.65 months ago